Home / 12,251,989.85-18,377,984.78-8,220,911.45

Finding the Fourth Proportional to 12,251,989.85, 18,377,984.78 and 8,220,911.45

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Solution

The fourth proportional to 12,251,989.85, 18,377,984.78 and 8,220,911.45 is: 12,331,367.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,989.85 : 18,377,984.78 = 8,220,911.45 : x
  2. Step 2: Convert to fraction form
    12,251,989.85/18,377,984.78 = 8,220,911.45/x
  3. Step 3: Cross multiply
    12,251,989.85x = 18,377,984.78 × 8,220,911.45
  4. Step 4: Simplify right side
    12,251,989.85x = 151,083,785,464,723.16
  5. Step 5: Solve for x
    x = 151,083,785,464,723.16/12,251,989.85
  6. Step 6: Final answer
    x = 12,331,367.18

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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.