Home / 12,469,821.60-18,704,732.40-8,214,794.40

Finding the Fourth Proportional to 12,469,821.60, 18,704,732.40 and 8,214,794.40

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Solution

The fourth proportional to 12,469,821.60, 18,704,732.40 and 8,214,794.40 is: 12,322,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469,821.60 : 18,704,732.40 = 8,214,794.40 : x
  2. Step 2: Convert to fraction form
    12,469,821.60/18,704,732.40 = 8,214,794.40/x
  3. Step 3: Cross multiply
    12,469,821.60x = 18,704,732.40 × 8,214,794.40
  4. Step 4: Simplify right side
    12,469,821.60x = 153,655,530,973,018.56
  5. Step 5: Solve for x
    x = 153,655,530,973,018.56/12,469,821.60
  6. Step 6: Final answer
    x = 12,322,191.60

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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.