Who is The richest man in the world?

Carlos Slim Helú - born January 28, 1940 is a Mexican business magnate and philanthropist who, as of 2012, is the richest person in the world for the third year in a row. He is the chairman and chief executive of telecommunications companies Telmex and América Móvil and has extensive holdings in other Mexican companies through his conglomerate, Grupo Carso SAB, as well as business interests elsewhere in the world.
América Móvil, which in 2010 was Latin America’s largest mobile-phone carrier, accounted for around US$49 billion of Slim's wealth by the end of 2010. His corporate holdings as of March 2012 have been estimated at US$69 billion.