Home / 8,214,310.20-12,297,845.70-7,978,114.20

Finding the Fourth Proportional to 8,214,310.20, 12,297,845.70 and 7,978,114.20

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Solution

The fourth proportional to 8,214,310.20, 12,297,845.70 and 7,978,114.20 is: 11,944,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214,310.20 : 12,297,845.70 = 7,978,114.20 : x
  2. Step 2: Convert to fraction form
    8,214,310.20/12,297,845.70 = 7,978,114.20/x
  3. Step 3: Cross multiply
    8,214,310.20x = 12,297,845.70 × 7,978,114.20
  4. Step 4: Simplify right side
    8,214,310.20x = 98,113,617,408,578.94
  5. Step 5: Solve for x
    x = 98,113,617,408,578.94/8,214,310.20
  6. Step 6: Final answer
    x = 11,944,230.86

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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.