Home / 20,644,990.21-28,491,902.04-11,354,197.26

Finding the Fourth Proportional to 20,644,990.21, 28,491,902.04 and 11,354,197.26

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Solution

The fourth proportional to 20,644,990.21, 28,491,902.04 and 11,354,197.26 is: 15,669,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,990.21 : 28,491,902.04 = 11,354,197.26 : x
  2. Step 2: Convert to fraction form
    20,644,990.21/28,491,902.04 = 11,354,197.26/x
  3. Step 3: Cross multiply
    20,644,990.21x = 28,491,902.04 × 11,354,197.26
  4. Step 4: Simplify right side
    20,644,990.21x = 323,502,676,074,756.38
  5. Step 5: Solve for x
    x = 323,502,676,074,756.38/20,644,990.21
  6. Step 6: Final answer
    x = 15,669,790.72

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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.