Home / 12,482,137.20-18,723,205.80-8,230,609.20

Finding the Fourth Proportional to 12,482,137.20, 18,723,205.80 and 8,230,609.20

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Solution

The fourth proportional to 12,482,137.20, 18,723,205.80 and 8,230,609.20 is: 12,345,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,137.20 : 18,723,205.80 = 8,230,609.20 : x
  2. Step 2: Convert to fraction form
    12,482,137.20/18,723,205.80 = 8,230,609.20/x
  3. Step 3: Cross multiply
    12,482,137.20x = 18,723,205.80 × 8,230,609.20
  4. Step 4: Simplify right side
    12,482,137.20x = 154,103,389,910,973.38
  5. Step 5: Solve for x
    x = 154,103,389,910,973.38/12,482,137.20
  6. Step 6: Final answer
    x = 12,345,913.80

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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.