Home / 8,138,659.80-12,209,933.70-2,458,939.80

Finding the Fourth Proportional to 8,138,659.80, 12,209,933.70 and 2,458,939.80

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Solution

The fourth proportional to 8,138,659.80, 12,209,933.70 and 2,458,939.80 is: 3,688,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,659.80 : 12,209,933.70 = 2,458,939.80 : x
  2. Step 2: Convert to fraction form
    8,138,659.80/12,209,933.70 = 2,458,939.80/x
  3. Step 3: Cross multiply
    8,138,659.80x = 12,209,933.70 × 2,458,939.80
  4. Step 4: Simplify right side
    8,138,659.80x = 30,023,491,930,291.26
  5. Step 5: Solve for x
    x = 30,023,491,930,291.26/8,138,659.80
  6. Step 6: Final answer
    x = 3,688,997.04

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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.