Finding the Fourth Proportional to 20,730,758.95, 31,096,132.35 and 11,132,934.49
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Solution
The fourth proportional to 20,730,758.95, 31,096,132.35 and 11,132,934.49 is: 16,699,398.47
Step by Step Solution
- Step 1: Write the proportion equation
20,730,758.95 : 31,096,132.35 = 11,132,934.49 : x - Step 2: Convert to fraction form
20,730,758.95/31,096,132.35 = 11,132,934.49/x - Step 3: Cross multiply
20,730,758.95x = 31,096,132.35 × 11,132,934.49 - Step 4: Simplify right side
20,730,758.95x = 346,191,204,344,919.75 - Step 5: Solve for x
x = 346,191,204,344,919.75/20,730,758.95 - Step 6: Final answer
x = 16,699,398.47
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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.