Asia dwarfs Ethiopia: about 44,580,000 km² km² against 1,131,761 km² km². At true size Asia is about 39.4× larger — the whole of Ethiopia fits into Asia roughly 39 times.
The old Mercator map treated both about equally (1× vs 1× inflation), so at least their relative sizes were preserved — even if both were drawn at the wrong absolute scale.
Ethiopia fits 39× into Asia.