Home / 18,785,190.72-25,912,105.20-12,420,024

Finding the Fourth Proportional to 18,785,190.72, 25,912,105.20 and 12,420,024

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Solution

The fourth proportional to 18,785,190.72, 25,912,105.20 and 12,420,024 is: 17,132,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,190.72 : 25,912,105.20 = 12,420,024 : x
  2. Step 2: Convert to fraction form
    18,785,190.72/25,912,105.20 = 12,420,024/x
  3. Step 3: Cross multiply
    18,785,190.72x = 25,912,105.20 × 12,420,024
  4. Step 4: Simplify right side
    18,785,190.72x = 321,828,968,474,524.81
  5. Step 5: Solve for x
    x = 321,828,968,474,524.81/18,785,190.72
  6. Step 6: Final answer
    x = 17,132,057.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.