Home / 18,871,722.30-28,265,593.05-15,512,490.30

Finding the Fourth Proportional to 18,871,722.30, 28,265,593.05 and 15,512,490.30

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Solution

The fourth proportional to 18,871,722.30, 28,265,593.05 and 15,512,490.30 is: 23,234,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,722.30 : 28,265,593.05 = 15,512,490.30 : x
  2. Step 2: Convert to fraction form
    18,871,722.30/28,265,593.05 = 15,512,490.30/x
  3. Step 3: Cross multiply
    18,871,722.30x = 28,265,593.05 × 15,512,490.30
  4. Step 4: Simplify right side
    18,871,722.30x = 438,469,738,011,872.44
  5. Step 5: Solve for x
    x = 438,469,738,011,872.44/18,871,722.30
  6. Step 6: Final answer
    x = 23,234,219.49

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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.