Finding the Fourth Proportional to 19,956,764.80, 29,935,147.20 and 15,652,092.70
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Solution
The fourth proportional to 19,956,764.80, 29,935,147.20 and 15,652,092.70 is: 23,478,139.05
Step by Step Solution
- Step 1: Write the proportion equation
19,956,764.80 : 29,935,147.20 = 15,652,092.70 : x - Step 2: Convert to fraction form
19,956,764.80/29,935,147.20 = 15,652,092.70/x - Step 3: Cross multiply
19,956,764.80x = 29,935,147.20 × 15,652,092.70 - Step 4: Simplify right side
19,956,764.80x = 468,547,698,962,545.38 - Step 5: Solve for x
x = 468,547,698,962,545.38/19,956,764.80 - Step 6: Final answer
x = 23,478,139.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.