Finding the Fourth Proportional to 221,423,807.70, 332,135,711.55 and 221,423,807.70
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Solution
The fourth proportional to 221,423,807.70, 332,135,711.55 and 221,423,807.70 is: 332,135,711.55
Step by Step Solution
- Step 1: Write the proportion equation
221,423,807.70 : 332,135,711.55 = 221,423,807.70 : x - Step 2: Convert to fraction form
221,423,807.70/332,135,711.55 = 221,423,807.70/x - Step 3: Cross multiply
221,423,807.70x = 332,135,711.55 × 221,423,807.70 - Step 4: Simplify right side
221,423,807.70x = 73,542,753,924,549,872 - Step 5: Solve for x
x = 73,542,753,924,549,872/221,423,807.70 - Step 6: Final answer
x = 332,135,711.55
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1.5x scale
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.