Home / 81,667,059.60-122,500,589.40-40,852,390.80

Finding the Fourth Proportional to 81,667,059.60, 122,500,589.40 and 40,852,390.80

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Solution

The fourth proportional to 81,667,059.60, 122,500,589.40 and 40,852,390.80 is: 61,278,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,667,059.60 : 122,500,589.40 = 40,852,390.80 : x
  2. Step 2: Convert to fraction form
    81,667,059.60/122,500,589.40 = 40,852,390.80/x
  3. Step 3: Cross multiply
    81,667,059.60x = 122,500,589.40 × 40,852,390.80
  4. Step 4: Simplify right side
    81,667,059.60x = 5,004,441,951,399,137
  5. Step 5: Solve for x
    x = 5,004,441,951,399,137/81,667,059.60
  6. Step 6: Final answer
    x = 61,278,586.20

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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.