Home / 36,288,981.60-54,433,472.40-20,983,480.80

Finding the Fourth Proportional to 36,288,981.60, 54,433,472.40 and 20,983,480.80

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Solution

The fourth proportional to 36,288,981.60, 54,433,472.40 and 20,983,480.80 is: 31,475,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,288,981.60 : 54,433,472.40 = 20,983,480.80 : x
  2. Step 2: Convert to fraction form
    36,288,981.60/54,433,472.40 = 20,983,480.80/x
  3. Step 3: Cross multiply
    36,288,981.60x = 54,433,472.40 × 20,983,480.80
  4. Step 4: Simplify right side
    36,288,981.60x = 1,142,203,722,982,730
  5. Step 5: Solve for x
    x = 1,142,203,722,982,730/36,288,981.60
  6. Step 6: Final answer
    x = 31,475,221.20

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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.