Home / 330,261,311.20-495,391,966.80-221,422,194.40

Finding the Fourth Proportional to 330,261,311.20, 495,391,966.80 and 221,422,194.40

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Solution

The fourth proportional to 330,261,311.20, 495,391,966.80 and 221,422,194.40 is: 332,133,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,261,311.20 : 495,391,966.80 = 221,422,194.40 : x
  2. Step 2: Convert to fraction form
    330,261,311.20/495,391,966.80 = 221,422,194.40/x
  3. Step 3: Cross multiply
    330,261,311.20x = 495,391,966.80 × 221,422,194.40
  4. Step 4: Simplify right side
    330,261,311.20x = 109,690,776,376,987,952
  5. Step 5: Solve for x
    x = 109,690,776,376,987,952/330,261,311.20
  6. Step 6: Final answer
    x = 332,133,291.60

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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.