Finding the Fourth Proportional to 15,824,434.52, 21,836,550.84 and 8,854,186.88
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Solution
The fourth proportional to 15,824,434.52, 21,836,550.84 and 8,854,186.88 is: 12,218,123.92
Step by Step Solution
- Step 1: Write the proportion equation
15,824,434.52 : 21,836,550.84 = 8,854,186.88 : x - Step 2: Convert to fraction form
15,824,434.52/21,836,550.84 = 8,854,186.88/x - Step 3: Cross multiply
15,824,434.52x = 21,836,550.84 × 8,854,186.88 - Step 4: Simplify right side
15,824,434.52x = 193,344,901,951,981 - Step 5: Solve for x
x = 193,344,901,951,981/15,824,434.52 - Step 6: Final answer
x = 12,218,123.92
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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.