Finding the Fourth Proportional to 168,202,811.70, 252,304,217.55 and 45,380,891.70
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Solution
The fourth proportional to 168,202,811.70, 252,304,217.55 and 45,380,891.70 is: 68,071,337.55
Step by Step Solution
- Step 1: Write the proportion equation
168,202,811.70 : 252,304,217.55 = 45,380,891.70 : x - Step 2: Convert to fraction form
168,202,811.70/252,304,217.55 = 45,380,891.70/x - Step 3: Cross multiply
168,202,811.70x = 252,304,217.55 × 45,380,891.70 - Step 4: Simplify right side
168,202,811.70x = 11,449,790,372,089,790 - Step 5: Solve for x
x = 11,449,790,372,089,790/168,202,811.70 - Step 6: Final answer
x = 68,071,337.55
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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.