Home / 3,986,201.20-5,979,301.80-1,856,500.60

Finding the Fourth Proportional to 3,986,201.20, 5,979,301.80 and 1,856,500.60

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Solution

The fourth proportional to 3,986,201.20, 5,979,301.80 and 1,856,500.60 is: 2,784,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,201.20 : 5,979,301.80 = 1,856,500.60 : x
  2. Step 2: Convert to fraction form
    3,986,201.20/5,979,301.80 = 1,856,500.60/x
  3. Step 3: Cross multiply
    3,986,201.20x = 5,979,301.80 × 1,856,500.60
  4. Step 4: Simplify right side
    3,986,201.20x = 11,100,577,379,281.08
  5. Step 5: Solve for x
    x = 11,100,577,379,281.08/3,986,201.20
  6. Step 6: Final answer
    x = 2,784,750.90

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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.