Home / 8,214,309.20-12,297,844.20-7,978,113.20

Finding the Fourth Proportional to 8,214,309.20, 12,297,844.20 and 7,978,113.20

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Solution

The fourth proportional to 8,214,309.20, 12,297,844.20 and 7,978,113.20 is: 11,944,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214,309.20 : 12,297,844.20 = 7,978,113.20 : x
  2. Step 2: Convert to fraction form
    8,214,309.20/12,297,844.20 = 7,978,113.20/x
  3. Step 3: Cross multiply
    8,214,309.20x = 12,297,844.20 × 7,978,113.20
  4. Step 4: Simplify right side
    8,214,309.20x = 98,113,593,143,563.44
  5. Step 5: Solve for x
    x = 98,113,593,143,563.44/8,214,309.20
  6. Step 6: Final answer
    x = 11,944,229.36

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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.