Finding the Fourth Proportional to 287,896,520.72, 431,497,823.20 and 132,235,527.26
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Solution
The fourth proportional to 287,896,520.72, 431,497,823.20 and 132,235,527.26 is: 198,193,927.53
Step by Step Solution
- Step 1: Write the proportion equation
287,896,520.72 : 431,497,823.20 = 132,235,527.26 : x - Step 2: Convert to fraction form
287,896,520.72/431,497,823.20 = 132,235,527.26/x - Step 3: Cross multiply
287,896,520.72x = 431,497,823.20 × 132,235,527.26 - Step 4: Simplify right side
287,896,520.72x = 57,059,342,162,394,264 - Step 5: Solve for x
x = 57,059,342,162,394,264/287,896,520.72 - Step 6: Final answer
x = 198,193,927.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.