Home / 13,198,769.20-18,216,854.94-8,607,118.96

Finding the Fourth Proportional to 13,198,769.20, 18,216,854.94 and 8,607,118.96

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Solution

The fourth proportional to 13,198,769.20, 18,216,854.94 and 8,607,118.96 is: 11,879,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198,769.20 : 18,216,854.94 = 8,607,118.96 : x
  2. Step 2: Convert to fraction form
    13,198,769.20/18,216,854.94 = 8,607,118.96/x
  3. Step 3: Cross multiply
    13,198,769.20x = 18,216,854.94 × 8,607,118.96
  4. Step 4: Simplify right side
    13,198,769.20x = 156,794,637,545,643.69
  5. Step 5: Solve for x
    x = 156,794,637,545,643.69/13,198,769.20
  6. Step 6: Final answer
    x = 11,879,489.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.