Finding the Fourth Proportional to 731,246,213.84, 1,009,121,691.66 and 396,718,719.14
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Solution
The fourth proportional to 731,246,213.84, 1,009,121,691.66 and 396,718,719.14 is: 547,472,872.19
Step by Step Solution
- Step 1: Write the proportion equation
731,246,213.84 : 1,009,121,691.66 = 396,718,719.14 : x - Step 2: Convert to fraction form
731,246,213.84/1,009,121,691.66 = 396,718,719.14/x - Step 3: Cross multiply
731,246,213.84x = 1,009,121,691.66 × 396,718,719.14 - Step 4: Simplify right side
731,246,213.84x = 400,337,464,971,745,216 - Step 5: Solve for x
x = 400,337,464,971,745,216/731,246,213.84 - Step 6: Final answer
x = 547,472,872.19
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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.