Sophia Brahe was a Danish astronomer in the 16th and 17th century who worked with her brother Tycho Brahe, also astronomer, in the creation of a star catalogue that Kepler used as a source to find the laws on the movement of planets in the Solar System. She made the observations on the lunar eclipse of December 1573.

In this context we propose you to solve the following astronomy problem:

We know that the average distance between the Earth and the Moon is 384,400 km, approximately.

Write that distance in metres, centimetres, and millimetres. Express the amounts obtained in powers of 10.