Home / 13,479,914.70-20,219,872.05-3,895,605.90

Finding the Fourth Proportional to 13,479,914.70, 20,219,872.05 and 3,895,605.90

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Solution

The fourth proportional to 13,479,914.70, 20,219,872.05 and 3,895,605.90 is: 5,843,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,914.70 : 20,219,872.05 = 3,895,605.90 : x
  2. Step 2: Convert to fraction form
    13,479,914.70/20,219,872.05 = 3,895,605.90/x
  3. Step 3: Cross multiply
    13,479,914.70x = 20,219,872.05 × 3,895,605.90
  4. Step 4: Simplify right side
    13,479,914.70x = 78,768,652,855,225.09
  5. Step 5: Solve for x
    x = 78,768,652,855,225.09/13,479,914.70
  6. Step 6: Final answer
    x = 5,843,408.85

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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.