Home / 81,667,110.10-122,500,665.15-40,852,441.30

Finding the Fourth Proportional to 81,667,110.10, 122,500,665.15 and 40,852,441.30

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Solution

The fourth proportional to 81,667,110.10, 122,500,665.15 and 40,852,441.30 is: 61,278,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,667,110.10 : 122,500,665.15 = 40,852,441.30 : x
  2. Step 2: Convert to fraction form
    81,667,110.10/122,500,665.15 = 40,852,441.30/x
  3. Step 3: Cross multiply
    81,667,110.10x = 122,500,665.15 × 40,852,441.30
  4. Step 4: Simplify right side
    81,667,110.10x = 5,004,451,232,251,331
  5. Step 5: Solve for x
    x = 5,004,451,232,251,331/81,667,110.10
  6. Step 6: Final answer
    x = 61,278,661.95

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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.