Finding the Fourth Proportional to 731,246,176.35, 1,009,121,639.67 and 396,718,681.47
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Solution
The fourth proportional to 731,246,176.35, 1,009,121,639.67 and 396,718,681.47 is: 547,472,820.07
Step by Step Solution
- Step 1: Write the proportion equation
731,246,176.35 : 1,009,121,639.67 = 396,718,681.47 : x - Step 2: Convert to fraction form
731,246,176.35/1,009,121,639.67 = 396,718,681.47/x - Step 3: Cross multiply
731,246,176.35x = 1,009,121,639.67 × 396,718,681.47 - Step 4: Simplify right side
731,246,176.35x = 400,337,406,332,726,848 - Step 5: Solve for x
x = 400,337,406,332,726,848/731,246,176.35 - Step 6: Final answer
x = 547,472,820.07
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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.