Home / 18,883,152.90-28,324,729.32-12,491,910.57

Finding the Fourth Proportional to 18,883,152.90, 28,324,729.32 and 12,491,910.57

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Solution

The fourth proportional to 18,883,152.90, 28,324,729.32 and 12,491,910.57 is: 18,737,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883,152.90 : 28,324,729.32 = 12,491,910.57 : x
  2. Step 2: Convert to fraction form
    18,883,152.90/28,324,729.32 = 12,491,910.57/x
  3. Step 3: Cross multiply
    18,883,152.90x = 28,324,729.32 × 12,491,910.57
  4. Step 4: Simplify right side
    18,883,152.90x = 353,829,985,584,896.94
  5. Step 5: Solve for x
    x = 353,829,985,584,896.94/18,883,152.90
  6. Step 6: Final answer
    x = 18,737,865.84

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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.