Home / 3,990,130.60-5,981,259.30-1,966,718.20

Finding the Fourth Proportional to 3,990,130.60, 5,981,259.30 and 1,966,718.20

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Solution

The fourth proportional to 3,990,130.60, 5,981,259.30 and 1,966,718.20 is: 2,948,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,130.60 : 5,981,259.30 = 1,966,718.20 : x
  2. Step 2: Convert to fraction form
    3,990,130.60/5,981,259.30 = 1,966,718.20/x
  3. Step 3: Cross multiply
    3,990,130.60x = 5,981,259.30 × 1,966,718.20
  4. Step 4: Simplify right side
    3,990,130.60x = 11,763,451,524,229.26
  5. Step 5: Solve for x
    x = 11,763,451,524,229.26/3,990,130.60
  6. Step 6: Final answer
    x = 2,948,136.97

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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.