As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Madagascar is USD 12,734 million. This GDP (nominal) is around 0.01% of Entire World’s GDP. Currently (2019), the world rank of Madagascar is 131 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Madagascar is USD 12,100 million. As per World Bank Estimates, the global rank of Madagascar is 131.

Madagascar GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Madagascar is USD 45,974 Million. This is 0.03% of World. Madagascar on this basis has a global rank of 110.