Home / 18,118,857.69-27,178,286.49-6,605,188.43

Finding the Fourth Proportional to 18,118,857.69, 27,178,286.49 and 6,605,188.43

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Solution

The fourth proportional to 18,118,857.69, 27,178,286.49 and 6,605,188.43 is: 9,907,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118,857.69 : 27,178,286.49 = 6,605,188.43 : x
  2. Step 2: Convert to fraction form
    18,118,857.69/27,178,286.49 = 6,605,188.43/x
  3. Step 3: Cross multiply
    18,118,857.69x = 27,178,286.49 × 6,605,188.43
  4. Step 4: Simplify right side
    18,118,857.69x = 179,517,703,335,081.88
  5. Step 5: Solve for x
    x = 179,517,703,335,081.88/18,118,857.69
  6. Step 6: Final answer
    x = 9,907,782.62

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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.