Home / 12,481,772.80-18,722,659.20-6,435,155.20

Finding the Fourth Proportional to 12,481,772.80, 18,722,659.20 and 6,435,155.20

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Solution

The fourth proportional to 12,481,772.80, 18,722,659.20 and 6,435,155.20 is: 9,652,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,772.80 : 18,722,659.20 = 6,435,155.20 : x
  2. Step 2: Convert to fraction form
    12,481,772.80/18,722,659.20 = 6,435,155.20/x
  3. Step 3: Cross multiply
    12,481,772.80x = 18,722,659.20 × 6,435,155.20
  4. Step 4: Simplify right side
    12,481,772.80x = 120,483,217,708,707.84
  5. Step 5: Solve for x
    x = 120,483,217,708,707.84/12,481,772.80
  6. Step 6: Final answer
    x = 9,652,732.80

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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.