Home / 12,101,951.20-18,128,043.60-8,319,704.80

Finding the Fourth Proportional to 12,101,951.20, 18,128,043.60 and 8,319,704.80

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Solution

The fourth proportional to 12,101,951.20, 18,128,043.60 and 8,319,704.80 is: 12,462,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,951.20 : 18,128,043.60 = 8,319,704.80 : x
  2. Step 2: Convert to fraction form
    12,101,951.20/18,128,043.60 = 8,319,704.80/x
  3. Step 3: Cross multiply
    12,101,951.20x = 18,128,043.60 × 8,319,704.80
  4. Step 4: Simplify right side
    12,101,951.20x = 150,819,971,353,529.28
  5. Step 5: Solve for x
    x = 150,819,971,353,529.28/12,101,951.20
  6. Step 6: Final answer
    x = 12,462,450.80

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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.