Home / 8,491,390.20-12,737,085.30-3,174,679.80

Finding the Fourth Proportional to 8,491,390.20, 12,737,085.30 and 3,174,679.80

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Solution

The fourth proportional to 8,491,390.20, 12,737,085.30 and 3,174,679.80 is: 4,762,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491,390.20 : 12,737,085.30 = 3,174,679.80 : x
  2. Step 2: Convert to fraction form
    8,491,390.20/12,737,085.30 = 3,174,679.80/x
  3. Step 3: Cross multiply
    8,491,390.20x = 12,737,085.30 × 3,174,679.80
  4. Step 4: Simplify right side
    8,491,390.20x = 40,436,167,412,786.94
  5. Step 5: Solve for x
    x = 40,436,167,412,786.94/8,491,390.20
  6. Step 6: Final answer
    x = 4,762,019.70

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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.