Home / 12,168,288-18,270,375.12-6,787,451.52

Finding the Fourth Proportional to 12,168,288, 18,270,375.12 and 6,787,451.52

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Solution

The fourth proportional to 12,168,288, 18,270,375.12 and 6,787,451.52 is: 10,191,185.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168,288 : 18,270,375.12 = 6,787,451.52 : x
  2. Step 2: Convert to fraction form
    12,168,288/18,270,375.12 = 6,787,451.52/x
  3. Step 3: Cross multiply
    12,168,288x = 18,270,375.12 × 6,787,451.52
  4. Step 4: Simplify right side
    12,168,288x = 124,009,285,379,214.19
  5. Step 5: Solve for x
    x = 124,009,285,379,214.19/12,168,288
  6. Step 6: Final answer
    x = 10,191,185.92

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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.