20 WORLD'S BILLIONAIRES

For billionaires with publicly traded fortunes, net worths were calculated using share prices and exchange rates from February 11, 2008.

Rank	Name	Citizenship	Age	Net Worth ($bil)	Residence
1	Warren Buffett	United States	77	62.0	United States
2	Carlos Slim Helu & family	Mexico	68	60.0	Mexico
3	William Gates III	United States	52	58.0	United States
4	Lakshmi Mittal	India	57	45.0	United Kingdom
5	Mukesh Ambani	India	50	43.0	India
6	Anil Ambani	India	48	42.0	India
7	Ingvar Kamprad & family	Sweden	81	31.0	Switzerland
8	KP Singh	India	76	30.0	India
9	Oleg Deripaska	Russia	40	28.0	Russia
10	Karl Albrecht	Germany	88	27.0	Germany
11	Li Ka-shing	Hong Kong	79	26.5	Hong Kong
12	Sheldon Adelson	United States	74	26.0	United States
13	Bernard Arnault	France	59	25.5	France
14	Lawrence Ellison	United States	63	25.0	United States
15	Roman Abramovich	Russia	41	23.5	Russia
16	Theo Albrecht	Germany	85	23.0	Germany
17	Liliane Bettencourt	France	85	22.9	France
18	Alexei Mordashov	Russia	42	21.2	Russia
19	Prince Alwaleed Bin Talal Alsaud	Saudi Arabia	51	21.0	Saudi Arabia
20	Mikhail Fridman	Russia	43	20.8	Russia

After 13 years on top, Bill Gates is no longer the richest man in the world. That honor now belongs to his friend and sometimes bridge partner Warren Buffett.

Riding the surging price of Berkshire Hathaway stock, Buffett has seen his fortune swell to an estimated $62 billion, up $10 billion from a year ago.

Gates is now worth $58 billion and is ranked third richest in the world. He is up $2 billion from a year ago, but would have been as rich--or richer--than Buffett, had Microsoft not made an unsolicited bid for Yahoo! at the beginning of February. Mexican telecom mogul Carlos Slim Helú now ranks as the world's second richest person with a net worth of $60 billion.