Home / 31,571,569.60-47,347,512.90-12,408,200.80

Finding the Fourth Proportional to 31,571,569.60, 47,347,512.90 and 12,408,200.80

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Solution

The fourth proportional to 31,571,569.60, 47,347,512.90 and 12,408,200.80 is: 18,608,433.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,571,569.60 : 47,347,512.90 = 12,408,200.80 : x
  2. Step 2: Convert to fraction form
    31,571,569.60/47,347,512.90 = 12,408,200.80/x
  3. Step 3: Cross multiply
    31,571,569.60x = 47,347,512.90 × 12,408,200.80
  4. Step 4: Simplify right side
    31,571,569.60x = 587,497,447,443,790.38
  5. Step 5: Solve for x
    x = 587,497,447,443,790.38/31,571,569.60
  6. Step 6: Final answer
    x = 18,608,433.31

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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.