Finding the Fourth Proportional to 212,957,414.46, 293,881,428.45 and 115,172,270.46
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Solution
The fourth proportional to 212,957,414.46, 293,881,428.45 and 115,172,270.46 is: 158,937,839.50
Step by Step Solution
- Step 1: Write the proportion equation
212,957,414.46 : 293,881,428.45 = 115,172,270.46 : x - Step 2: Convert to fraction form
212,957,414.46/293,881,428.45 = 115,172,270.46/x - Step 3: Cross multiply
212,957,414.46x = 293,881,428.45 × 115,172,270.46 - Step 4: Simplify right side
212,957,414.46x = 33,846,991,360,614,536 - Step 5: Solve for x
x = 33,846,991,360,614,536/212,957,414.46 - Step 6: Final answer
x = 158,937,839.50
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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.