Finding the Fourth Proportional to 81,092,620.40, 121,640,174.76 and 27,240,398.96
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Solution
The fourth proportional to 81,092,620.40, 121,640,174.76 and 27,240,398.96 is: 40,861,016.37
Step by Step Solution
- Step 1: Write the proportion equation
81,092,620.40 : 121,640,174.76 = 27,240,398.96 : x - Step 2: Convert to fraction form
81,092,620.40/121,640,174.76 = 27,240,398.96/x - Step 3: Cross multiply
81,092,620.40x = 121,640,174.76 × 27,240,398.96 - Step 4: Simplify right side
81,092,620.40x = 3,313,526,890,026,522.50 - Step 5: Solve for x
x = 3,313,526,890,026,522.50/81,092,620.40 - Step 6: Final answer
x = 40,861,016.37
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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.