Home / 13,971,963.28-20,915,954.51-8,289,262.48

Finding the Fourth Proportional to 13,971,963.28, 20,915,954.51 and 8,289,262.48

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Solution

The fourth proportional to 13,971,963.28, 20,915,954.51 and 8,289,262.48 is: 12,408,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971,963.28 : 20,915,954.51 = 8,289,262.48 : x
  2. Step 2: Convert to fraction form
    13,971,963.28/20,915,954.51 = 8,289,262.48/x
  3. Step 3: Cross multiply
    13,971,963.28x = 20,915,954.51 × 8,289,262.48
  4. Step 4: Simplify right side
    13,971,963.28x = 173,377,836,869,273.16
  5. Step 5: Solve for x
    x = 173,377,836,869,273.16/13,971,963.28
  6. Step 6: Final answer
    x = 12,408,981.72

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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.