Home / 31,589,996.40-43,600,930.20-21,680,434.80

Finding the Fourth Proportional to 31,589,996.40, 43,600,930.20 and 21,680,434.80

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Solution

The fourth proportional to 31,589,996.40, 43,600,930.20 and 21,680,434.80 is: 29,923,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589,996.40 : 43,600,930.20 = 21,680,434.80 : x
  2. Step 2: Convert to fraction form
    31,589,996.40/43,600,930.20 = 21,680,434.80/x
  3. Step 3: Cross multiply
    31,589,996.40x = 43,600,930.20 × 21,680,434.80
  4. Step 4: Simplify right side
    31,589,996.40x = 945,287,124,420,451
  5. Step 5: Solve for x
    x = 945,287,124,420,451/31,589,996.40
  6. Step 6: Final answer
    x = 29,923,622.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.