Finding the Fourth Proportional to 12,341,512.74, 17,025,635.12 and 7,992,000.12
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Solution
The fourth proportional to 12,341,512.74, 17,025,635.12 and 7,992,000.12 is: 11,025,299.79
Step by Step Solution
- Step 1: Write the proportion equation
12,341,512.74 : 17,025,635.12 = 7,992,000.12 : x - Step 2: Convert to fraction form
12,341,512.74/17,025,635.12 = 7,992,000.12/x - Step 3: Cross multiply
12,341,512.74x = 17,025,635.12 × 7,992,000.12 - Step 4: Simplify right side
12,341,512.74x = 136,068,877,882,156.20 - Step 5: Solve for x
x = 136,068,877,882,156.20/12,341,512.74 - Step 6: Final answer
x = 11,025,299.79
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1.5x scale
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.