Australia is 47 times larger than Tunisia.
Area: 7,741,220 km2 World Factbook
Population: 22,507,617 (July 2014) World Factbook
Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the world's sixth-largest country by total area. Wikipedia
Area: 163,610 km2 World Factbook
Population: 10,937,521 (July 2014) World Factbook
Tunisia, officially the Tunisian Republic; is the northernmost country in Africa and, at almost 165,000 square kilometres in area, the smallest country in the Maghreb region of North Africa. Wikipedia