Home / 13,115,198.28-18,098,938.44-7,313,986.38

Finding the Fourth Proportional to 13,115,198.28, 18,098,938.44 and 7,313,986.38

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Solution

The fourth proportional to 13,115,198.28, 18,098,938.44 and 7,313,986.38 is: 10,093,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115,198.28 : 18,098,938.44 = 7,313,986.38 : x
  2. Step 2: Convert to fraction form
    13,115,198.28/18,098,938.44 = 7,313,986.38/x
  3. Step 3: Cross multiply
    13,115,198.28x = 18,098,938.44 × 7,313,986.38
  4. Step 4: Simplify right side
    13,115,198.28x = 132,375,389,242,618.45
  5. Step 5: Solve for x
    x = 132,375,389,242,618.45/13,115,198.28
  6. Step 6: Final answer
    x = 10,093,281.58

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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.