Finding the Fourth Proportional to 12,704,967.67, 17,531,432.17 and 7,197,162.93
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Solution
The fourth proportional to 12,704,967.67, 17,531,432.17 and 7,197,162.93 is: 9,931,278.61
Step by Step Solution
- Step 1: Write the proportion equation
12,704,967.67 : 17,531,432.17 = 7,197,162.93 : x - Step 2: Convert to fraction form
12,704,967.67/17,531,432.17 = 7,197,162.93/x - Step 3: Cross multiply
12,704,967.67x = 17,531,432.17 × 7,197,162.93 - Step 4: Simplify right side
12,704,967.67x = 126,176,573,723,733.47 - Step 5: Solve for x
x = 126,176,573,723,733.47/12,704,967.67 - Step 6: Final answer
x = 9,931,278.61
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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.