Home / 12,892,288.70-17,791,367.49-7,091,511.74

Finding the Fourth Proportional to 12,892,288.70, 17,791,367.49 and 7,091,511.74

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Solution

The fourth proportional to 12,892,288.70, 17,791,367.49 and 7,091,511.74 is: 9,786,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,288.70 : 17,791,367.49 = 7,091,511.74 : x
  2. Step 2: Convert to fraction form
    12,892,288.70/17,791,367.49 = 7,091,511.74/x
  3. Step 3: Cross multiply
    12,892,288.70x = 17,791,367.49 × 7,091,511.74
  4. Step 4: Simplify right side
    12,892,288.70x = 126,167,691,425,989.33
  5. Step 5: Solve for x
    x = 126,167,691,425,989.33/12,892,288.70
  6. Step 6: Final answer
    x = 9,786,291.20

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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.