Finding the Fourth Proportional to 57,121,079.47, 85,680,622.68 and 13,990,656.52
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Solution
The fourth proportional to 57,121,079.47, 85,680,622.68 and 13,990,656.52 is: 20,985,740.70
Step by Step Solution
- Step 1: Write the proportion equation
57,121,079.47 : 85,680,622.68 = 13,990,656.52 : x - Step 2: Convert to fraction form
57,121,079.47/85,680,622.68 = 13,990,656.52/x - Step 3: Cross multiply
57,121,079.47x = 85,680,622.68 × 13,990,656.52 - Step 4: Simplify right side
57,121,079.47x = 1,198,728,162,335,602 - Step 5: Solve for x
x = 1,198,728,162,335,602/57,121,079.47 - Step 6: Final answer
x = 20,985,740.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.