Net Worth: $4.4 billion
Profession: American businessman
The Source of His Wealth: He inherited it, but he’s got the smarts to grow his fortune. He is the CEO of Carnival Cruise Lines and the owner of the Miami Heat.
Fast Facts: Arison is actually from Israel, but currently splits his time between Miami, New York, and Israel. He attended the University of Miami, though he never graduated. Yes, this college dropout is now the 189th-wealthiest man on the planet with a bank account that is growing, as stock in Carnival surged close to 60 percent over the past year.