Finding the Fourth Proportional to 216,286,349.76, 324,449,470.20 and 70,720,657.62
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Solution
The fourth proportional to 216,286,349.76, 324,449,470.20 and 70,720,657.62 is: 106,087,508.17
Step by Step Solution
- Step 1: Write the proportion equation
216,286,349.76 : 324,449,470.20 = 70,720,657.62 : x - Step 2: Convert to fraction form
216,286,349.76/324,449,470.20 = 70,720,657.62/x - Step 3: Cross multiply
216,286,349.76x = 324,449,470.20 × 70,720,657.62 - Step 4: Simplify right side
216,286,349.76x = 22,945,279,897,004,592 - Step 5: Solve for x
x = 22,945,279,897,004,592/216,286,349.76 - Step 6: Final answer
x = 106,087,508.17
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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.