Finding the Fourth Proportional to 207,923,361.92, 286,924,936.96 and 115,097,310.08
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Solution
The fourth proportional to 207,923,361.92, 286,924,936.96 and 115,097,310.08 is: 158,829,138.46
Step by Step Solution
- Step 1: Write the proportion equation
207,923,361.92 : 286,924,936.96 = 115,097,310.08 : x - Step 2: Convert to fraction form
207,923,361.92/286,924,936.96 = 115,097,310.08/x - Step 3: Cross multiply
207,923,361.92x = 286,924,936.96 × 115,097,310.08 - Step 4: Simplify right side
207,923,361.92x = 33,024,288,438,969,568 - Step 5: Solve for x
x = 33,024,288,438,969,568/207,923,361.92 - Step 6: Final answer
x = 158,829,138.46
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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.