Home / 13,348,997.39-20,123,549.17-12,459,158.58

Finding the Fourth Proportional to 13,348,997.39, 20,123,549.17 and 12,459,158.58

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Solution

The fourth proportional to 13,348,997.39, 20,123,549.17 and 12,459,158.58 is: 18,782,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,997.39 : 20,123,549.17 = 12,459,158.58 : x
  2. Step 2: Convert to fraction form
    13,348,997.39/20,123,549.17 = 12,459,158.58/x
  3. Step 3: Cross multiply
    13,348,997.39x = 20,123,549.17 × 12,459,158.58
  4. Step 4: Simplify right side
    13,348,997.39x = 250,722,490,231,987.50
  5. Step 5: Solve for x
    x = 250,722,490,231,987.50/13,348,997.39
  6. Step 6: Final answer
    x = 18,782,121.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.