Home / 12,775,212.80-19,162,819.20-11,515,500.80

Finding the Fourth Proportional to 12,775,212.80, 19,162,819.20 and 11,515,500.80

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Solution

The fourth proportional to 12,775,212.80, 19,162,819.20 and 11,515,500.80 is: 17,273,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,212.80 : 19,162,819.20 = 11,515,500.80 : x
  2. Step 2: Convert to fraction form
    12,775,212.80/19,162,819.20 = 11,515,500.80/x
  3. Step 3: Cross multiply
    12,775,212.80x = 19,162,819.20 × 11,515,500.80
  4. Step 4: Simplify right side
    12,775,212.80x = 220,669,459,827,855.38
  5. Step 5: Solve for x
    x = 220,669,459,827,855.38/12,775,212.80
  6. Step 6: Final answer
    x = 17,273,251.20

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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.