Home / 12,451,660.48-18,678,050.16-3,815,128.18

Finding the Fourth Proportional to 12,451,660.48, 18,678,050.16 and 3,815,128.18

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Solution

The fourth proportional to 12,451,660.48, 18,678,050.16 and 3,815,128.18 is: 5,722,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,660.48 : 18,678,050.16 = 3,815,128.18 : x
  2. Step 2: Convert to fraction form
    12,451,660.48/18,678,050.16 = 3,815,128.18/x
  3. Step 3: Cross multiply
    12,451,660.48x = 18,678,050.16 × 3,815,128.18
  4. Step 4: Simplify right side
    12,451,660.48x = 71,259,155,512,869.52
  5. Step 5: Solve for x
    x = 71,259,155,512,869.52/12,451,660.48
  6. Step 6: Final answer
    x = 5,722,863.68

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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.