Finding the Fourth Proportional to 23,502,872.11, 32,411,423.26 and 15,121,687.71
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Solution
The fourth proportional to 23,502,872.11, 32,411,423.26 and 15,121,687.71 is: 20,853,426.70
Step by Step Solution
- Step 1: Write the proportion equation
23,502,872.11 : 32,411,423.26 = 15,121,687.71 : x - Step 2: Convert to fraction form
23,502,872.11/32,411,423.26 = 15,121,687.71/x - Step 3: Cross multiply
23,502,872.11x = 32,411,423.26 × 15,121,687.71 - Step 4: Simplify right side
23,502,872.11x = 490,115,420,774,350.19 - Step 5: Solve for x
x = 490,115,420,774,350.19/23,502,872.11 - Step 6: Final answer
x = 20,853,426.70
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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.