Finding the Fourth Proportional to 207,495,711.49, 286,476,143.24 and 129,294,151.33
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Solution
The fourth proportional to 207,495,711.49, 286,476,143.24 and 129,294,151.33 is: 178,508,218.55
Step by Step Solution
- Step 1: Write the proportion equation
207,495,711.49 : 286,476,143.24 = 129,294,151.33 : x - Step 2: Convert to fraction form
207,495,711.49/286,476,143.24 = 129,294,151.33/x - Step 3: Cross multiply
207,495,711.49x = 286,476,143.24 × 129,294,151.33 - Step 4: Simplify right side
207,495,711.49x = 37,039,689,814,428,464 - Step 5: Solve for x
x = 37,039,689,814,428,464/207,495,711.49 - Step 6: Final answer
x = 178,508,218.55
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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.