Home / 3,990,187.60-5,981,344.80-1,966,775.20

Finding the Fourth Proportional to 3,990,187.60, 5,981,344.80 and 1,966,775.20

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Solution

The fourth proportional to 3,990,187.60, 5,981,344.80 and 1,966,775.20 is: 2,948,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,187.60 : 5,981,344.80 = 1,966,775.20 : x
  2. Step 2: Convert to fraction form
    3,990,187.60/5,981,344.80 = 1,966,775.20/x
  3. Step 3: Cross multiply
    3,990,187.60x = 5,981,344.80 × 1,966,775.20
  4. Step 4: Simplify right side
    3,990,187.60x = 11,763,960,615,288.96
  5. Step 5: Solve for x
    x = 11,763,960,615,288.96/3,990,187.60
  6. Step 6: Final answer
    x = 2,948,222.44

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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.