Finding the Fourth Proportional to 310,614,324.14, 428,656,736.68 and 171,394,053.78
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Solution
The fourth proportional to 310,614,324.14, 428,656,736.68 and 171,394,053.78 is: 236,528,743.43
Step by Step Solution
- Step 1: Write the proportion equation
310,614,324.14 : 428,656,736.68 = 171,394,053.78 : x - Step 2: Convert to fraction form
310,614,324.14/428,656,736.68 = 171,394,053.78/x - Step 3: Cross multiply
310,614,324.14x = 428,656,736.68 × 171,394,053.78 - Step 4: Simplify right side
310,614,324.14x = 73,469,215,779,691,216 - Step 5: Solve for x
x = 73,469,215,779,691,216/310,614,324.14 - Step 6: Final answer
x = 236,528,743.43
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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.