The ratios of the two ratios are 112, and the external terms of their proportional expressions are 14 and 19, respectively______ :______ =______ :______ .

The ratios of the two ratios are 112, and the external terms of their proportional expressions are 14 and 19, respectively______ :______ =______ :______ .

14 △ 112 = 14 × 23 = 16, 19 × 112 = 19 × 32 = 16, so 14:16 = 16:19; so the answer is: 14:16 = 16:19