Home / 247,327,793.60-370,991,690.40-85,769,729.60

Finding the Fourth Proportional to 247,327,793.60, 370,991,690.40 and 85,769,729.60

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Solution

The fourth proportional to 247,327,793.60, 370,991,690.40 and 85,769,729.60 is: 128,654,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,327,793.60 : 370,991,690.40 = 85,769,729.60 : x
  2. Step 2: Convert to fraction form
    247,327,793.60/370,991,690.40 = 85,769,729.60/x
  3. Step 3: Cross multiply
    247,327,793.60x = 370,991,690.40 × 85,769,729.60
  4. Step 4: Simplify right side
    247,327,793.60x = 31,819,856,969,454,912
  5. Step 5: Solve for x
    x = 31,819,856,969,454,912/247,327,793.60
  6. Step 6: Final answer
    x = 128,654,594.40

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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.