Finding the Fourth Proportional to 208,752,882.28, 313,127,329.57 and 126,894,361.66
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Solution
The fourth proportional to 208,752,882.28, 313,127,329.57 and 126,894,361.66 is: 190,340,330.49
Step by Step Solution
- Step 1: Write the proportion equation
208,752,882.28 : 313,127,329.57 = 126,894,361.66 : x - Step 2: Convert to fraction form
208,752,882.28/313,127,329.57 = 126,894,361.66/x - Step 3: Cross multiply
208,752,882.28x = 313,127,329.57 × 126,894,361.66 - Step 4: Simplify right side
208,752,882.28x = 39,734,092,602,985,536 - Step 5: Solve for x
x = 39,734,092,602,985,536/208,752,882.28 - Step 6: Final answer
x = 190,340,330.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.