Finding the Fourth Proportional to 10,531,543.70, 15,797,315.55 and 9,901,687.70
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Solution
The fourth proportional to 10,531,543.70, 15,797,315.55 and 9,901,687.70 is: 14,852,531.55
Step by Step Solution
- Step 1: Write the proportion equation
10,531,543.70 : 15,797,315.55 = 9,901,687.70 : x - Step 2: Convert to fraction form
10,531,543.70/15,797,315.55 = 9,901,687.70/x - Step 3: Cross multiply
10,531,543.70x = 15,797,315.55 × 9,901,687.70 - Step 4: Simplify right side
10,531,543.70x = 156,420,085,074,453.72 - Step 5: Solve for x
x = 156,420,085,074,453.72/10,531,543.70 - Step 6: Final answer
x = 14,852,531.55
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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.