Home / 20,149,575-27,806,423.91-11,447,762.82

Finding the Fourth Proportional to 20,149,575, 27,806,423.91 and 11,447,762.82

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Solution

The fourth proportional to 20,149,575, 27,806,423.91 and 11,447,762.82 is: 15,797,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149,575 : 27,806,423.91 = 11,447,762.82 : x
  2. Step 2: Convert to fraction form
    20,149,575/27,806,423.91 = 11,447,762.82/x
  3. Step 3: Cross multiply
    20,149,575x = 27,806,423.91 × 11,447,762.82
  4. Step 4: Simplify right side
    20,149,575x = 318,321,345,794,057.06
  5. Step 5: Solve for x
    x = 318,321,345,794,057.06/20,149,575
  6. Step 6: Final answer
    x = 15,797,918.61

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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.