Finding the Fourth Proportional to 221,857,687.80, 332,786,531.70 and 135,764,245.80
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Solution
The fourth proportional to 221,857,687.80, 332,786,531.70 and 135,764,245.80 is: 203,646,368.70
Step by Step Solution
- Step 1: Write the proportion equation
221,857,687.80 : 332,786,531.70 = 135,764,245.80 : x - Step 2: Convert to fraction form
221,857,687.80/332,786,531.70 = 135,764,245.80/x - Step 3: Cross multiply
221,857,687.80x = 332,786,531.70 × 135,764,245.80 - Step 4: Simplify right side
221,857,687.80x = 45,180,512,488,648,296 - Step 5: Solve for x
x = 45,180,512,488,648,296/221,857,687.80 - Step 6: Final answer
x = 203,646,368.70
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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.