Finding the Fourth Proportional to 221,652,023.20, 331,722,207.60 and 221,652,023.20
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Solution
The fourth proportional to 221,652,023.20, 331,722,207.60 and 221,652,023.20 is: 331,722,207.60
Step by Step Solution
- Step 1: Write the proportion equation
221,652,023.20 : 331,722,207.60 = 221,652,023.20 : x - Step 2: Convert to fraction form
221,652,023.20/331,722,207.60 = 221,652,023.20/x - Step 3: Cross multiply
221,652,023.20x = 331,722,207.60 × 221,652,023.20 - Step 4: Simplify right side
221,652,023.20x = 73,526,898,454,910,416 - Step 5: Solve for x
x = 73,526,898,454,910,416/221,652,023.20 - Step 6: Final answer
x = 331,722,207.60
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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.