Finding the Fourth Proportional to 120,888,276.30, 181,332,414.45 and 87,127,994.70
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Solution
The fourth proportional to 120,888,276.30, 181,332,414.45 and 87,127,994.70 is: 130,691,992.05
Step by Step Solution
- Step 1: Write the proportion equation
120,888,276.30 : 181,332,414.45 = 87,127,994.70 : x - Step 2: Convert to fraction form
120,888,276.30/181,332,414.45 = 87,127,994.70/x - Step 3: Cross multiply
120,888,276.30x = 181,332,414.45 × 87,127,994.70 - Step 4: Simplify right side
120,888,276.30x = 15,799,129,645,137,802 - Step 5: Solve for x
x = 15,799,129,645,137,802/120,888,276.30 - Step 6: Final answer
x = 130,691,992.05
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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.