Finding the Fourth Proportional to 319,687,385.42, 441,168,586.49 and 173,009,669.42
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Solution
The fourth proportional to 319,687,385.42, 441,168,586.49 and 173,009,669.42 is: 238,753,340.88
Step by Step Solution
- Step 1: Write the proportion equation
319,687,385.42 : 441,168,586.49 = 173,009,669.42 : x - Step 2: Convert to fraction form
319,687,385.42/441,168,586.49 = 173,009,669.42/x - Step 3: Cross multiply
319,687,385.42x = 441,168,586.49 × 173,009,669.42 - Step 4: Simplify right side
319,687,385.42x = 76,326,431,307,123,568 - Step 5: Solve for x
x = 76,326,431,307,123,568/319,687,385.42 - Step 6: Final answer
x = 238,753,340.88
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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.