Home / 18,287,949-27,378,110.34-12,207,599.22

Finding the Fourth Proportional to 18,287,949, 27,378,110.34 and 12,207,599.22

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Solution

The fourth proportional to 18,287,949, 27,378,110.34 and 12,207,599.22 is: 18,275,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287,949 : 27,378,110.34 = 12,207,599.22 : x
  2. Step 2: Convert to fraction form
    18,287,949/27,378,110.34 = 12,207,599.22/x
  3. Step 3: Cross multiply
    18,287,949x = 27,378,110.34 × 12,207,599.22
  4. Step 4: Simplify right side
    18,287,949x = 334,220,998,431,657.94
  5. Step 5: Solve for x
    x = 334,220,998,431,657.94/18,287,949
  6. Step 6: Final answer
    x = 18,275,477.39

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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.