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Finding the Fourth Proportional to 18,164,927.11, 27,247,390.68 and 12,467,879.59

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Solution

The fourth proportional to 18,164,927.11, 27,247,390.68 and 12,467,879.59 is: 18,701,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164,927.11 : 27,247,390.68 = 12,467,879.59 : x
  2. Step 2: Convert to fraction form
    18,164,927.11/27,247,390.68 = 12,467,879.59/x
  3. Step 3: Cross multiply
    18,164,927.11x = 27,247,390.68 × 12,467,879.59
  4. Step 4: Simplify right side
    18,164,927.11x = 339,717,186,139,928.19
  5. Step 5: Solve for x
    x = 339,717,186,139,928.19/18,164,927.11
  6. Step 6: Final answer
    x = 18,701,819.40

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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.