Finding the Fourth Proportional to 481,215,736.90, 664,060,533.42 and 272,367,394.30
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Solution
The fourth proportional to 481,215,736.90, 664,060,533.42 and 272,367,394.30 is: 375,857,278.30
Step by Step Solution
- Step 1: Write the proportion equation
481,215,736.90 : 664,060,533.42 = 272,367,394.30 : x - Step 2: Convert to fraction form
481,215,736.90/664,060,533.42 = 272,367,394.30/x - Step 3: Cross multiply
481,215,736.90x = 664,060,533.42 × 272,367,394.30 - Step 4: Simplify right side
481,215,736.90x = 180,868,437,145,073,472 - Step 5: Solve for x
x = 180,868,437,145,073,472/481,215,736.90 - Step 6: Final answer
x = 375,857,278.30
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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.