Home / 18,165,039.30-27,247,558.95-12,467,991.78

Finding the Fourth Proportional to 18,165,039.30, 27,247,558.95 and 12,467,991.78

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Solution

The fourth proportional to 18,165,039.30, 27,247,558.95 and 12,467,991.78 is: 18,701,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165,039.30 : 27,247,558.95 = 12,467,991.78 : x
  2. Step 2: Convert to fraction form
    18,165,039.30/27,247,558.95 = 12,467,991.78/x
  3. Step 3: Cross multiply
    18,165,039.30x = 27,247,558.95 × 12,467,991.78
  4. Step 4: Simplify right side
    18,165,039.30x = 339,722,341,013,665.38
  5. Step 5: Solve for x
    x = 339,722,341,013,665.38/18,165,039.30
  6. Step 6: Final answer
    x = 18,701,987.67

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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.