Finding the Fourth Proportional to 81,471,910.75, 112,433,367.69 and 44,304,364.80
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Solution
The fourth proportional to 81,471,910.75, 112,433,367.69 and 44,304,364.80 is: 61,141,182.18
Step by Step Solution
- Step 1: Write the proportion equation
81,471,910.75 : 112,433,367.69 = 44,304,364.80 : x - Step 2: Convert to fraction form
81,471,910.75/112,433,367.69 = 44,304,364.80/x - Step 3: Cross multiply
81,471,910.75x = 112,433,367.69 × 44,304,364.80 - Step 4: Simplify right side
81,471,910.75x = 4,981,288,937,608,771 - Step 5: Solve for x
x = 4,981,288,937,608,771/81,471,910.75 - Step 6: Final answer
x = 61,141,182.18
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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.