Home / 12,379,819.68-18,568,628.73-4,292,614.44

Finding the Fourth Proportional to 12,379,819.68, 18,568,628.73 and 4,292,614.44

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Solution

The fourth proportional to 12,379,819.68, 18,568,628.73 and 4,292,614.44 is: 6,438,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,819.68 : 18,568,628.73 = 4,292,614.44 : x
  2. Step 2: Convert to fraction form
    12,379,819.68/18,568,628.73 = 4,292,614.44/x
  3. Step 3: Cross multiply
    12,379,819.68x = 18,568,628.73 × 4,292,614.44
  4. Step 4: Simplify right side
    12,379,819.68x = 79,707,963,817,396.88
  5. Step 5: Solve for x
    x = 79,707,963,817,396.88/12,379,819.68
  6. Step 6: Final answer
    x = 6,438,539.97

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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.