Finding the Fourth Proportional to 239,215,594.50, 330,117,754.50 and 129,207,307.50
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Solution
The fourth proportional to 239,215,594.50, 330,117,754.50 and 129,207,307.50 is: 178,306,210.79
Step by Step Solution
- Step 1: Write the proportion equation
239,215,594.50 : 330,117,754.50 = 129,207,307.50 : x - Step 2: Convert to fraction form
239,215,594.50/330,117,754.50 = 129,207,307.50/x - Step 3: Cross multiply
239,215,594.50x = 330,117,754.50 × 129,207,307.50 - Step 4: Simplify right side
239,215,594.50x = 42,653,626,216,891,008 - Step 5: Solve for x
x = 42,653,626,216,891,008/239,215,594.50 - Step 6: Final answer
x = 178,306,210.79
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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.