Home / 330,286,502.70-495,429,754.05-221,447,385.90

Finding the Fourth Proportional to 330,286,502.70, 495,429,754.05 and 221,447,385.90

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Solution

The fourth proportional to 330,286,502.70, 495,429,754.05 and 221,447,385.90 is: 332,171,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,286,502.70 : 495,429,754.05 = 221,447,385.90 : x
  2. Step 2: Convert to fraction form
    330,286,502.70/495,429,754.05 = 221,447,385.90/x
  3. Step 3: Cross multiply
    330,286,502.70x = 495,429,754.05 × 221,447,385.90
  4. Step 4: Simplify right side
    330,286,502.70x = 109,711,623,931,452,448
  5. Step 5: Solve for x
    x = 109,711,623,931,452,448/330,286,502.70
  6. Step 6: Final answer
    x = 332,171,078.85

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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.