Finding the Fourth Proportional to 80,752,456.20, 121,144,430.70 and 34,694,236.20
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Solution
The fourth proportional to 80,752,456.20, 121,144,430.70 and 34,694,236.20 is: 52,048,119.53
Step by Step Solution
- Step 1: Write the proportion equation
80,752,456.20 : 121,144,430.70 = 34,694,236.20 : x - Step 2: Convert to fraction form
80,752,456.20/121,144,430.70 = 34,694,236.20/x - Step 3: Cross multiply
80,752,456.20x = 121,144,430.70 × 34,694,236.20 - Step 4: Simplify right side
80,752,456.20x = 4,203,013,493,020,332 - Step 5: Solve for x
x = 4,203,013,493,020,332/80,752,456.20 - Step 6: Final answer
x = 52,048,119.53
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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.