North America dwarfs Pakistan: about 24,710,000 km² km² against 873,772 km² km². At true size North America is about 28.3× larger — the whole of Pakistan fits into North America roughly 28 times.
The old Mercator map treated both about equally (1× vs 1.3× inflation), so at least their relative sizes were preserved — even if both were drawn at the wrong absolute scale.
Pakistan fits 28× into North America.