Home / 81,777,561.64-122,667,410.92-27,190,147.16

Finding the Fourth Proportional to 81,777,561.64, 122,667,410.92 and 27,190,147.16

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Solution

The fourth proportional to 81,777,561.64, 122,667,410.92 and 27,190,147.16 is: 40,785,575.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,777,561.64 : 122,667,410.92 = 27,190,147.16 : x
  2. Step 2: Convert to fraction form
    81,777,561.64/122,667,410.92 = 27,190,147.16/x
  3. Step 3: Cross multiply
    81,777,561.64x = 122,667,410.92 × 27,190,147.16
  4. Step 4: Simplify right side
    81,777,561.64x = 3,335,344,954,650,991
  5. Step 5: Solve for x
    x = 3,335,344,954,650,991/81,777,561.64
  6. Step 6: Final answer
    x = 40,785,575.99

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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.