Carlos Slim and Bill Gates, the world's wealthiest men with a joint fortune of more than $100 billion, declared a joint endeavor on Monday, which will bring fundamental defensive health care to the underprivileged people in southern Mexico and Central America.

Mexican business giant, Slim took the top position in the Forbes' listing of the world's richest for the first time this year.

He and Microsoft's Chairman, Bill Gates will throw in $50 million each to fund inoculations, child nutrition and biological health for the area's most deprived.

The five-year plan will aim at aboriginal communities, mostly women and kids, from Mexico across the Central American isthmus to Panama.

Slim and Gates are the richest men on the earth, but the capitalists took entirely diverse paths to become rich.

With an early interest in computer programming, Gates left Harvard University without a degree in order that he could work on software-development that ultimately resulted in the formation of Microsoft.

Slim, a born deal manufacturer, spent his early life in finance sector before he purchased state telephone firm, Telmex in 1990 in a measure, which noticed his net value soaring.

They have both made health as a foundation stone of their benevolence endeavors in recent years.