Finding the Fourth Proportional to 753,366,687.10, 1,129,440,207.57 and 235,530,576.70
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Solution
The fourth proportional to 753,366,687.10, 1,129,440,207.57 and 235,530,576.70 is: 353,105,211.57
Step by Step Solution
- Step 1: Write the proportion equation
753,366,687.10 : 1,129,440,207.57 = 235,530,576.70 : x - Step 2: Convert to fraction form
753,366,687.10/1,129,440,207.57 = 235,530,576.70/x - Step 3: Cross multiply
753,366,687.10x = 1,129,440,207.57 × 235,530,576.70 - Step 4: Simplify right side
753,366,687.10x = 266,017,703,437,129,792 - Step 5: Solve for x
x = 266,017,703,437,129,792/753,366,687.10 - Step 6: Final answer
x = 353,105,211.57
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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.