Home / 31,540,545.36-47,354,385.24-21,801,165.84

Finding the Fourth Proportional to 31,540,545.36, 47,354,385.24 and 21,801,165.84

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Solution

The fourth proportional to 31,540,545.36, 47,354,385.24 and 21,801,165.84 is: 32,731,862.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540,545.36 : 47,354,385.24 = 21,801,165.84 : x
  2. Step 2: Convert to fraction form
    31,540,545.36/47,354,385.24 = 21,801,165.84/x
  3. Step 3: Cross multiply
    31,540,545.36x = 47,354,385.24 × 21,801,165.84
  4. Step 4: Simplify right side
    31,540,545.36x = 1,032,380,805,868,488.25
  5. Step 5: Solve for x
    x = 1,032,380,805,868,488.25/31,540,545.36
  6. Step 6: Final answer
    x = 32,731,862.88

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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.