Home / 18,678,990.68-25,777,648.18-10,837,910.86

Finding the Fourth Proportional to 18,678,990.68, 25,777,648.18 and 10,837,910.86

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Solution

The fourth proportional to 18,678,990.68, 25,777,648.18 and 10,837,910.86 is: 14,956,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,990.68 : 25,777,648.18 = 10,837,910.86 : x
  2. Step 2: Convert to fraction form
    18,678,990.68/25,777,648.18 = 10,837,910.86/x
  3. Step 3: Cross multiply
    18,678,990.68x = 25,777,648.18 × 10,837,910.86
  4. Step 4: Simplify right side
    18,678,990.68x = 279,375,853,155,281.22
  5. Step 5: Solve for x
    x = 279,375,853,155,281.22/18,678,990.68
  6. Step 6: Final answer
    x = 14,956,688.93

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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.