Finding the Fourth Proportional to 15,423,753.49, 21,272,368.97 and 13,559,182.38
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Solution
The fourth proportional to 15,423,753.49, 21,272,368.97 and 13,559,182.38 is: 18,700,761.18
Step by Step Solution
- Step 1: Write the proportion equation
15,423,753.49 : 21,272,368.97 = 13,559,182.38 : x - Step 2: Convert to fraction form
15,423,753.49/21,272,368.97 = 13,559,182.38/x - Step 3: Cross multiply
15,423,753.49x = 21,272,368.97 × 13,559,182.38 - Step 4: Simplify right side
15,423,753.49x = 288,435,930,518,882.75 - Step 5: Solve for x
x = 288,435,930,518,882.75/15,423,753.49 - Step 6: Final answer
x = 18,700,761.18
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1.5x scale
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.