Home / 2,100,469.70-3,150,704.55-978,652.10

Finding the Fourth Proportional to 2,100,469.70, 3,150,704.55 and 978,652.10

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Solution

The fourth proportional to 2,100,469.70, 3,150,704.55 and 978,652.10 is: 1,467,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,469.70 : 3,150,704.55 = 978,652.10 : x
  2. Step 2: Convert to fraction form
    2,100,469.70/3,150,704.55 = 978,652.10/x
  3. Step 3: Cross multiply
    2,100,469.70x = 3,150,704.55 × 978,652.10
  4. Step 4: Simplify right side
    2,100,469.70x = 3,083,443,624,337.06
  5. Step 5: Solve for x
    x = 3,083,443,624,337.06/2,100,469.70
  6. Step 6: Final answer
    x = 1,467,978.15

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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.