Home / 31,906,795.55-47,872,255.24-12,489,898.39

Finding the Fourth Proportional to 31,906,795.55, 47,872,255.24 and 12,489,898.39

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Solution

The fourth proportional to 31,906,795.55, 47,872,255.24 and 12,489,898.39 is: 18,739,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,906,795.55 : 47,872,255.24 = 12,489,898.39 : x
  2. Step 2: Convert to fraction form
    31,906,795.55/47,872,255.24 = 12,489,898.39/x
  3. Step 3: Cross multiply
    31,906,795.55x = 47,872,255.24 × 12,489,898.39
  4. Step 4: Simplify right side
    31,906,795.55x = 597,919,603,647,745.12
  5. Step 5: Solve for x
    x = 597,919,603,647,745.12/31,906,795.55
  6. Step 6: Final answer
    x = 18,739,569.22

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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.