Home / 81,777,560.77-122,667,409.62-27,190,146.29

Finding the Fourth Proportional to 81,777,560.77, 122,667,409.62 and 27,190,146.29

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Solution

The fourth proportional to 81,777,560.77, 122,667,409.62 and 27,190,146.29 is: 40,785,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,777,560.77 : 122,667,409.62 = 27,190,146.29 : x
  2. Step 2: Convert to fraction form
    81,777,560.77/122,667,409.62 = 27,190,146.29/x
  3. Step 3: Cross multiply
    81,777,560.77x = 122,667,409.62 × 27,190,146.29
  4. Step 4: Simplify right side
    81,777,560.77x = 3,335,344,812,447,202.50
  5. Step 5: Solve for x
    x = 3,335,344,812,447,202.50/81,777,560.77
  6. Step 6: Final answer
    x = 40,785,574.69

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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.