Finding the Fourth Proportional to 21,564,044.16, 29,747,640.96 and 12,856,087.68
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Solution
The fourth proportional to 21,564,044.16, 29,747,640.96 and 12,856,087.68 is: 17,734,998.02
Step by Step Solution
- Step 1: Write the proportion equation
21,564,044.16 : 29,747,640.96 = 12,856,087.68 : x - Step 2: Convert to fraction form
21,564,044.16/29,747,640.96 = 12,856,087.68/x - Step 3: Cross multiply
21,564,044.16x = 29,747,640.96 × 12,856,087.68 - Step 4: Simplify right side
21,564,044.16x = 382,438,280,454,919.38 - Step 5: Solve for x
x = 382,438,280,454,919.38/21,564,044.16 - Step 6: Final answer
x = 17,734,998.02
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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.