Finding the Fourth Proportional to 168,872,614.71, 232,924,070.79 and 154,978,836.09
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Solution
The fourth proportional to 168,872,614.71, 232,924,070.79 and 154,978,836.09 is: 213,760,540.45
Step by Step Solution
- Step 1: Write the proportion equation
168,872,614.71 : 232,924,070.79 = 154,978,836.09 : x - Step 2: Convert to fraction form
168,872,614.71/232,924,070.79 = 154,978,836.09/x - Step 3: Cross multiply
168,872,614.71x = 232,924,070.79 × 154,978,836.09 - Step 4: Simplify right side
168,872,614.71x = 36,098,301,388,378,968 - Step 5: Solve for x
x = 36,098,301,388,378,968/168,872,614.71 - Step 6: Final answer
x = 213,760,540.45
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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.