Home / 69,986,543.60-104,979,815.40-18,873,729.20

Finding the Fourth Proportional to 69,986,543.60, 104,979,815.40 and 18,873,729.20

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Solution

The fourth proportional to 69,986,543.60, 104,979,815.40 and 18,873,729.20 is: 28,310,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,986,543.60 : 104,979,815.40 = 18,873,729.20 : x
  2. Step 2: Convert to fraction form
    69,986,543.60/104,979,815.40 = 18,873,729.20/x
  3. Step 3: Cross multiply
    69,986,543.60x = 104,979,815.40 × 18,873,729.20
  4. Step 4: Simplify right side
    69,986,543.60x = 1,981,360,607,325,589.75
  5. Step 5: Solve for x
    x = 1,981,360,607,325,589.75/69,986,543.60
  6. Step 6: Final answer
    x = 28,310,593.80

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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.