Finding the Fourth Proportional to 239,234,736.28, 330,144,080.70 and 129,226,497.88
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Solution
The fourth proportional to 239,234,736.28, 330,144,080.70 and 129,226,497.88 is: 178,332,645.20
Step by Step Solution
- Step 1: Write the proportion equation
239,234,736.28 : 330,144,080.70 = 129,226,497.88 : x - Step 2: Convert to fraction form
239,234,736.28/330,144,080.70 = 129,226,497.88/x - Step 3: Cross multiply
239,234,736.28x = 330,144,080.70 × 129,226,497.88 - Step 4: Simplify right side
239,234,736.28x = 42,663,363,344,673,096 - Step 5: Solve for x
x = 42,663,363,344,673,096/239,234,736.28 - Step 6: Final answer
x = 178,332,645.20
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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.