In 2004, it was reported that "the relationship between body mass, [tex]M[/tex], and standard metabolic rate, [tex]B[/tex], among living organisms remains controversial. However, in many cases, [tex]B[/tex] is approximately proportional to the three-quarters power of [tex]M[/tex].

The average mass of an African forest elephant is 4.6 metric tons, and that of a typical mouse is 25 grams. Use this information to determine how many times greater the metabolic rate of an elephant is than that of a mouse. Recall that 1 metric ton = 1,000,000 grams.