Home / 18,678,992.68-25,777,650.94-10,837,912.86

Finding the Fourth Proportional to 18,678,992.68, 25,777,650.94 and 10,837,912.86

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Solution

The fourth proportional to 18,678,992.68, 25,777,650.94 and 10,837,912.86 is: 14,956,691.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,992.68 : 25,777,650.94 = 10,837,912.86 : x
  2. Step 2: Convert to fraction form
    18,678,992.68/25,777,650.94 = 10,837,912.86/x
  3. Step 3: Cross multiply
    18,678,992.68x = 25,777,650.94 × 10,837,912.86
  4. Step 4: Simplify right side
    18,678,992.68x = 279,375,934,623,217.09
  5. Step 5: Solve for x
    x = 279,375,934,623,217.09/18,678,992.68
  6. Step 6: Final answer
    x = 14,956,691.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.