Home / 3,729,980.36-5,147,380.78-2,202,185.90

Finding the Fourth Proportional to 3,729,980.36, 5,147,380.78 and 2,202,185.90

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Solution

The fourth proportional to 3,729,980.36, 5,147,380.78 and 2,202,185.90 is: 3,039,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729,980.36 : 5,147,380.78 = 2,202,185.90 : x
  2. Step 2: Convert to fraction form
    3,729,980.36/5,147,380.78 = 2,202,185.90/x
  3. Step 3: Cross multiply
    3,729,980.36x = 5,147,380.78 × 2,202,185.90
  4. Step 4: Simplify right side
    3,729,980.36x = 11,335,489,375,647.00
  5. Step 5: Solve for x
    x = 11,335,489,375,647.00/3,729,980.36
  6. Step 6: Final answer
    x = 3,039,021.20

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Why These Related Problems?

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