Largest South American economy by far, it’s top 10 world. Brazil is extremely rich, it just seems poor because of their ridiculous wealth inequality

They’re extremely natural resource rich. Tons of wood (Amazon rainforest being the most famous example) and they have by far the most freshwater reserves

Large landmass also means lots of ports on the East coast too. Brazil has most of the East Coast of South America and they have the warmest longitudes too