Finding the Fourth Proportional to 272,910,119.13, 409,304,901.74 and 78,779,350.17
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Solution
The fourth proportional to 272,910,119.13, 409,304,901.74 and 78,779,350.17 is: 118,151,625.46
Step by Step Solution
- Step 1: Write the proportion equation
272,910,119.13 : 409,304,901.74 = 78,779,350.17 : x - Step 2: Convert to fraction form
272,910,119.13/409,304,901.74 = 78,779,350.17/x - Step 3: Cross multiply
272,910,119.13x = 409,304,901.74 × 78,779,350.17 - Step 4: Simplify right side
272,910,119.13x = 32,244,774,180,079,008 - Step 5: Solve for x
x = 32,244,774,180,079,008/272,910,119.13 - Step 6: Final answer
x = 118,151,625.46
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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.