Home / 3,986,540.40-5,979,810.60-3,962,920.80

Finding the Fourth Proportional to 3,986,540.40, 5,979,810.60 and 3,962,920.80

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Solution

The fourth proportional to 3,986,540.40, 5,979,810.60 and 3,962,920.80 is: 5,944,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,540.40 : 5,979,810.60 = 3,962,920.80 : x
  2. Step 2: Convert to fraction form
    3,986,540.40/5,979,810.60 = 3,962,920.80/x
  3. Step 3: Cross multiply
    3,986,540.40x = 5,979,810.60 × 3,962,920.80
  4. Step 4: Simplify right side
    3,986,540.40x = 23,697,515,806,800.48
  5. Step 5: Solve for x
    x = 23,697,515,806,800.48/3,986,540.40
  6. Step 6: Final answer
    x = 5,944,381.20

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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.