Home / 7,990,930.80-11,986,396.20-3,199,359.60

Finding the Fourth Proportional to 7,990,930.80, 11,986,396.20 and 3,199,359.60

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Solution

The fourth proportional to 7,990,930.80, 11,986,396.20 and 3,199,359.60 is: 4,799,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,930.80 : 11,986,396.20 = 3,199,359.60 : x
  2. Step 2: Convert to fraction form
    7,990,930.80/11,986,396.20 = 3,199,359.60/x
  3. Step 3: Cross multiply
    7,990,930.80x = 11,986,396.20 × 3,199,359.60
  4. Step 4: Simplify right side
    7,990,930.80x = 38,348,791,751,873.52
  5. Step 5: Solve for x
    x = 38,348,791,751,873.52/7,990,930.80
  6. Step 6: Final answer
    x = 4,799,039.40

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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.