 Definitions 9 and 10 apply this, saying that if "p", "q" and "r" are in proportion then "p"∶"r" is the "duplicate ratio" of "p"∶"q" and if "p", "q", "r" and "s" are in proportion then "p"∶"s" is the "triplicate ratio" of "p"∶"q".In general, a comparison of the quantities of a two-entity ratio can be expressed as a fraction derived from the ratio.For example, in a ratio of 2∶3, the amount, size, volume, or quantity of the first entity is formula_4 that of the second entity.