Finding the Fourth Proportional to 15,988,983.68, 22,044,801.12 and 13,343,639.60
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Solution
The fourth proportional to 15,988,983.68, 22,044,801.12 and 13,343,639.60 is: 18,397,534.65
Step by Step Solution
- Step 1: Write the proportion equation
15,988,983.68 : 22,044,801.12 = 13,343,639.60 : x - Step 2: Convert to fraction form
15,988,983.68/22,044,801.12 = 13,343,639.60/x - Step 3: Cross multiply
15,988,983.68x = 22,044,801.12 × 13,343,639.60 - Step 4: Simplify right side
15,988,983.68x = 294,157,881,198,956.38 - Step 5: Solve for x
x = 294,157,881,198,956.38/15,988,983.68 - Step 6: Final answer
x = 18,397,534.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.