As of recent estimates, Australia's population is approximately 25 million, while Madagascar's is around 28 million.
Dividing Madagascar's population by Australia's gives a ratio of 28/25 = 1.12. This means Madagascar's population is about 12% larger than Australia's, or roughly equivalent in scale.
Despite Madagascar being an island and Australia a continent, their human populations are surprisingly similar in size. This comparison highlights how population density and distribution can differ dramatically between landmasses of vastly different areas.