Home / 5,311,862.40-7,967,793.60-2,119,279.80

Finding the Fourth Proportional to 5,311,862.40, 7,967,793.60 and 2,119,279.80

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Solution

The fourth proportional to 5,311,862.40, 7,967,793.60 and 2,119,279.80 is: 3,178,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311,862.40 : 7,967,793.60 = 2,119,279.80 : x
  2. Step 2: Convert to fraction form
    5,311,862.40/7,967,793.60 = 2,119,279.80/x
  3. Step 3: Cross multiply
    5,311,862.40x = 7,967,793.60 × 2,119,279.80
  4. Step 4: Simplify right side
    5,311,862.40x = 16,885,984,027,049.28
  5. Step 5: Solve for x
    x = 16,885,984,027,049.28/5,311,862.40
  6. Step 6: Final answer
    x = 3,178,919.70

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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.