Finding the Fourth Proportional to 498,639,722.76, 688,110,805.53 and 272,568,657.96
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Solution
The fourth proportional to 498,639,722.76, 688,110,805.53 and 272,568,657.96 is: 376,138,182.00
Step by Step Solution
- Step 1: Write the proportion equation
498,639,722.76 : 688,110,805.53 = 272,568,657.96 : x - Step 2: Convert to fraction form
498,639,722.76/688,110,805.53 = 272,568,657.96/x - Step 3: Cross multiply
498,639,722.76x = 688,110,805.53 × 272,568,657.96 - Step 4: Simplify right side
498,639,722.76x = 187,557,438,791,086,624 - Step 5: Solve for x
x = 187,557,438,791,086,624/498,639,722.76 - Step 6: Final answer
x = 376,138,182.00
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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.