Home / 439,895,383.20-660,268,227.60-221,791,996.80

Finding the Fourth Proportional to 439,895,383.20, 660,268,227.60 and 221,791,996.80

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Solution

The fourth proportional to 439,895,383.20, 660,268,227.60 and 221,791,996.80 is: 332,902,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,895,383.20 : 660,268,227.60 = 221,791,996.80 : x
  2. Step 2: Convert to fraction form
    439,895,383.20/660,268,227.60 = 221,791,996.80/x
  3. Step 3: Cross multiply
    439,895,383.20x = 660,268,227.60 × 221,791,996.80
  4. Step 4: Simplify right side
    439,895,383.20x = 146,442,208,623,000,896
  5. Step 5: Solve for x
    x = 146,442,208,623,000,896/439,895,383.20
  6. Step 6: Final answer
    x = 332,902,354.10

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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.