Home / 20,665,469.55-30,981,408.17-7,211,745.39

Finding the Fourth Proportional to 20,665,469.55, 30,981,408.17 and 7,211,745.39

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Solution

The fourth proportional to 20,665,469.55, 30,981,408.17 and 7,211,745.39 is: 10,811,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665,469.55 : 30,981,408.17 = 7,211,745.39 : x
  2. Step 2: Convert to fraction form
    20,665,469.55/30,981,408.17 = 7,211,745.39/x
  3. Step 3: Cross multiply
    20,665,469.55x = 30,981,408.17 × 7,211,745.39
  4. Step 4: Simplify right side
    20,665,469.55x = 223,430,027,509,647.09
  5. Step 5: Solve for x
    x = 223,430,027,509,647.09/20,665,469.55
  6. Step 6: Final answer
    x = 10,811,756.63

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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.