Home / 13,313,691-18,375,952.23-7,808,839.29

Finding the Fourth Proportional to 13,313,691, 18,375,952.23 and 7,808,839.29

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Solution

The fourth proportional to 13,313,691, 18,375,952.23 and 7,808,839.29 is: 10,777,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313,691 : 18,375,952.23 = 7,808,839.29 : x
  2. Step 2: Convert to fraction form
    13,313,691/18,375,952.23 = 7,808,839.29/x
  3. Step 3: Cross multiply
    13,313,691x = 18,375,952.23 × 7,808,839.29
  4. Step 4: Simplify right side
    13,313,691x = 143,494,857,764,787.12
  5. Step 5: Solve for x
    x = 143,494,857,764,787.12/13,313,691
  6. Step 6: Final answer
    x = 10,777,992.20

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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.