Home / 19,328,628.20-28,992,942.30-8,540,375.90

Finding the Fourth Proportional to 19,328,628.20, 28,992,942.30 and 8,540,375.90

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Solution

The fourth proportional to 19,328,628.20, 28,992,942.30 and 8,540,375.90 is: 12,810,563.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328,628.20 : 28,992,942.30 = 8,540,375.90 : x
  2. Step 2: Convert to fraction form
    19,328,628.20/28,992,942.30 = 8,540,375.90/x
  3. Step 3: Cross multiply
    19,328,628.20x = 28,992,942.30 × 8,540,375.90
  4. Step 4: Simplify right side
    19,328,628.20x = 247,610,625,689,010.59
  5. Step 5: Solve for x
    x = 247,610,625,689,010.59/19,328,628.20
  6. Step 6: Final answer
    x = 12,810,563.85

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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.