Finding the Fourth Proportional to 221,392,585.80, 332,230,596.30 and 129,276,145.80
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Solution
The fourth proportional to 221,392,585.80, 332,230,596.30 and 129,276,145.80 is: 193,996,970.82
Step by Step Solution
- Step 1: Write the proportion equation
221,392,585.80 : 332,230,596.30 = 129,276,145.80 : x - Step 2: Convert to fraction form
221,392,585.80/332,230,596.30 = 129,276,145.80/x - Step 3: Cross multiply
221,392,585.80x = 332,230,596.30 × 129,276,145.80 - Step 4: Simplify right side
221,392,585.80x = 42,949,491,006,499,744 - Step 5: Solve for x
x = 42,949,491,006,499,744/221,392,585.80 - Step 6: Final answer
x = 193,996,970.82
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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.