Home / 81,667,074.60-122,500,611.90-40,852,405.80

Finding the Fourth Proportional to 81,667,074.60, 122,500,611.90 and 40,852,405.80

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Solution

The fourth proportional to 81,667,074.60, 122,500,611.90 and 40,852,405.80 is: 61,278,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,667,074.60 : 122,500,611.90 = 40,852,405.80 : x
  2. Step 2: Convert to fraction form
    81,667,074.60/122,500,611.90 = 40,852,405.80/x
  3. Step 3: Cross multiply
    81,667,074.60x = 122,500,611.90 × 40,852,405.80
  4. Step 4: Simplify right side
    81,667,074.60x = 5,004,444,708,087,109
  5. Step 5: Solve for x
    x = 5,004,444,708,087,109/81,667,074.60
  6. Step 6: Final answer
    x = 61,278,608.70

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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.