Brazil is 5.2 times larger than Iran.
Area: 8,514,877 km2 World Factbook
Population: 202,656,788 (July 2014) World Factbook
Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and the Latin American region. It is the world's fifth largest country, both by geographical area and by population. Wikipedia
Area: 1,648,195 km2 World Factbook
Population: 80,840,713 (July 2014) World Factbook
Iran, also known as Persia, officially the Islamic Republic of Iran, is a country in Western Asia. Wikipedia