Home / 330,261,317.70-495,391,976.55-221,422,200.90

Finding the Fourth Proportional to 330,261,317.70, 495,391,976.55 and 221,422,200.90

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Solution

The fourth proportional to 330,261,317.70, 495,391,976.55 and 221,422,200.90 is: 332,133,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,261,317.70 : 495,391,976.55 = 221,422,200.90 : x
  2. Step 2: Convert to fraction form
    330,261,317.70/495,391,976.55 = 221,422,200.90/x
  3. Step 3: Cross multiply
    330,261,317.70x = 495,391,976.55 × 221,422,200.90
  4. Step 4: Simplify right side
    330,261,317.70x = 109,690,781,755,902,192
  5. Step 5: Solve for x
    x = 109,690,781,755,902,192/330,261,317.70
  6. Step 6: Final answer
    x = 332,133,301.35

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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.