Home / 3,188,423.20-4,776,183.60-1,986,656.80

Finding the Fourth Proportional to 3,188,423.20, 4,776,183.60 and 1,986,656.80

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Solution

The fourth proportional to 3,188,423.20, 4,776,183.60 and 1,986,656.80 is: 2,975,965.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188,423.20 : 4,776,183.60 = 1,986,656.80 : x
  2. Step 2: Convert to fraction form
    3,188,423.20/4,776,183.60 = 1,986,656.80/x
  3. Step 3: Cross multiply
    3,188,423.20x = 4,776,183.60 × 1,986,656.80
  4. Step 4: Simplify right side
    3,188,423.20x = 9,488,637,626,988.48
  5. Step 5: Solve for x
    x = 9,488,637,626,988.48/3,188,423.20
  6. Step 6: Final answer
    x = 2,975,965.56

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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.