Home / 7,198,729.20-9,925,480.80-6,781,449.60

Finding the Fourth Proportional to 7,198,729.20, 9,925,480.80 and 6,781,449.60

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Solution

The fourth proportional to 7,198,729.20, 9,925,480.80 and 6,781,449.60 is: 9,350,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198,729.20 : 9,925,480.80 = 6,781,449.60 : x
  2. Step 2: Convert to fraction form
    7,198,729.20/9,925,480.80 = 6,781,449.60/x
  3. Step 3: Cross multiply
    7,198,729.20x = 9,925,480.80 × 6,781,449.60
  4. Step 4: Simplify right side
    7,198,729.20x = 67,309,147,800,967.68
  5. Step 5: Solve for x
    x = 67,309,147,800,967.68/7,198,729.20
  6. Step 6: Final answer
    x = 9,350,143.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.