Madagascar is 6.2 times larger than Santa Catarina (Brazil).
Area: 587,041 km2 World Factbook
Population: 23,201,926 (July 2014) World Factbook
Madagascar, officially the Republic of Madagascar and previously known as the Malagasy Republic, is an island country in the Indian Ocean, off the coast of Southeast Africa. The nation comprises the island of Madagascar, as well as numerous smaller peripheral islands. Wikipedia
Santa Catarina is a state in southern Brazil. According to the Index of Economic Well-Being calculated between 2002 and 2008, Santa Catarina was the Brazilian state that revealed the highest economic well-being in relation to the others. Wikipedia