Home / 18,722,404.20-28,083,606.30-13,646,231.40

Finding the Fourth Proportional to 18,722,404.20, 28,083,606.30 and 13,646,231.40

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Solution

The fourth proportional to 18,722,404.20, 28,083,606.30 and 13,646,231.40 is: 20,469,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,404.20 : 28,083,606.30 = 13,646,231.40 : x
  2. Step 2: Convert to fraction form
    18,722,404.20/28,083,606.30 = 13,646,231.40/x
  3. Step 3: Cross multiply
    18,722,404.20x = 28,083,606.30 × 13,646,231.40
  4. Step 4: Simplify right side
    18,722,404.20x = 383,235,390,116,297.81
  5. Step 5: Solve for x
    x = 383,235,390,116,297.81/18,722,404.20
  6. Step 6: Final answer
    x = 20,469,347.10

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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.