Home / 12,288,546.40-18,432,819.60-3,768,815.20

Finding the Fourth Proportional to 12,288,546.40, 18,432,819.60 and 3,768,815.20

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Solution

The fourth proportional to 12,288,546.40, 18,432,819.60 and 3,768,815.20 is: 5,653,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,546.40 : 18,432,819.60 = 3,768,815.20 : x
  2. Step 2: Convert to fraction form
    12,288,546.40/18,432,819.60 = 3,768,815.20/x
  3. Step 3: Cross multiply
    12,288,546.40x = 18,432,819.60 × 3,768,815.20
  4. Step 4: Simplify right side
    12,288,546.40x = 69,469,890,687,337.93
  5. Step 5: Solve for x
    x = 69,469,890,687,337.93/12,288,546.40
  6. Step 6: Final answer
    x = 5,653,222.80

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1.5x scale

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.