Home / 3,209,498.12-4,429,561.56-1,986,197.61

Finding the Fourth Proportional to 3,209,498.12, 4,429,561.56 and 1,986,197.61

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Solution

The fourth proportional to 3,209,498.12, 4,429,561.56 and 1,986,197.61 is: 2,741,233.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209,498.12 : 4,429,561.56 = 1,986,197.61 : x
  2. Step 2: Convert to fraction form
    3,209,498.12/4,429,561.56 = 1,986,197.61/x
  3. Step 3: Cross multiply
    3,209,498.12x = 4,429,561.56 × 1,986,197.61
  4. Step 4: Simplify right side
    3,209,498.12x = 8,797,984,583,819.87
  5. Step 5: Solve for x
    x = 8,797,984,583,819.87/3,209,498.12
  6. Step 6: Final answer
    x = 2,741,233.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.