Home / 20,771,913.99-28,663,739.54-11,479,372.86

Finding the Fourth Proportional to 20,771,913.99, 28,663,739.54 and 11,479,372.86

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Solution

The fourth proportional to 20,771,913.99, 28,663,739.54 and 11,479,372.86 is: 15,840,704.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,913.99 : 28,663,739.54 = 11,479,372.86 : x
  2. Step 2: Convert to fraction form
    20,771,913.99/28,663,739.54 = 11,479,372.86/x
  3. Step 3: Cross multiply
    20,771,913.99x = 28,663,739.54 × 11,479,372.86
  4. Step 4: Simplify right side
    20,771,913.99x = 329,041,753,540,869.31
  5. Step 5: Solve for x
    x = 329,041,753,540,869.31/20,771,913.99
  6. Step 6: Final answer
    x = 15,840,704.61

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