Finding the Fourth Proportional to 468,231,767.52, 646,129,536.57 and 256,538,308.02
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Solution
The fourth proportional to 468,231,767.52, 646,129,536.57 and 256,538,308.02 is: 354,006,262.65
Step by Step Solution
- Step 1: Write the proportion equation
468,231,767.52 : 646,129,536.57 = 256,538,308.02 : x - Step 2: Convert to fraction form
468,231,767.52/646,129,536.57 = 256,538,308.02/x - Step 3: Cross multiply
468,231,767.52x = 646,129,536.57 × 256,538,308.02 - Step 4: Simplify right side
468,231,767.52x = 165,756,978,073,414,528 - Step 5: Solve for x
x = 165,756,978,073,414,528/468,231,767.52 - Step 6: Final answer
x = 354,006,262.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.