Home / 20,647,938.60-28,494,882.81-11,828,963.16

Finding the Fourth Proportional to 20,647,938.60, 28,494,882.81 and 11,828,963.16

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Solution

The fourth proportional to 20,647,938.60, 28,494,882.81 and 11,828,963.16 is: 16,324,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,938.60 : 28,494,882.81 = 11,828,963.16 : x
  2. Step 2: Convert to fraction form
    20,647,938.60/28,494,882.81 = 11,828,963.16/x
  3. Step 3: Cross multiply
    20,647,938.60x = 28,494,882.81 × 11,828,963.16
  4. Step 4: Simplify right side
    20,647,938.60x = 337,064,919,008,007.25
  5. Step 5: Solve for x
    x = 337,064,919,008,007.25/20,647,938.60
  6. Step 6: Final answer
    x = 16,324,385.96

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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.