Home / 12,115,286.70-18,155,215.35-10,308,387.30

Finding the Fourth Proportional to 12,115,286.70, 18,155,215.35 and 10,308,387.30

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Solution

The fourth proportional to 12,115,286.70, 18,155,215.35 and 10,308,387.30 is: 15,447,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,286.70 : 18,155,215.35 = 10,308,387.30 : x
  2. Step 2: Convert to fraction form
    12,115,286.70/18,155,215.35 = 10,308,387.30/x
  3. Step 3: Cross multiply
    12,115,286.70x = 18,155,215.35 × 10,308,387.30
  4. Step 4: Simplify right side
    12,115,286.70x = 187,150,991,342,705.09
  5. Step 5: Solve for x
    x = 187,150,991,342,705.09/12,115,286.70
  6. Step 6: Final answer
    x = 15,447,508.26

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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.