Finding the Fourth Proportional to 209,048,786.75, 288,472,350.71 and 114,969,557.99
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Solution
The fourth proportional to 209,048,786.75, 288,472,350.71 and 114,969,557.99 is: 158,649,754.30
Step by Step Solution
- Step 1: Write the proportion equation
209,048,786.75 : 288,472,350.71 = 114,969,557.99 : x - Step 2: Convert to fraction form
209,048,786.75/288,472,350.71 = 114,969,557.99/x - Step 3: Cross multiply
209,048,786.75x = 288,472,350.71 × 114,969,557.99 - Step 4: Simplify right side
209,048,786.75x = 33,165,538,654,473,568 - Step 5: Solve for x
x = 33,165,538,654,473,568/209,048,786.75 - Step 6: Final answer
x = 158,649,754.30
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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.