Home / 11,296,778.72-15,597,062.12-8,678,619.88

Finding the Fourth Proportional to 11,296,778.72, 15,597,062.12 and 8,678,619.88

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Solution

The fourth proportional to 11,296,778.72, 15,597,062.12 and 8,678,619.88 is: 11,982,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296,778.72 : 15,597,062.12 = 8,678,619.88 : x
  2. Step 2: Convert to fraction form
    11,296,778.72/15,597,062.12 = 8,678,619.88/x
  3. Step 3: Cross multiply
    11,296,778.72x = 15,597,062.12 × 8,678,619.88
  4. Step 4: Simplify right side
    11,296,778.72x = 135,360,973,366,930.84
  5. Step 5: Solve for x
    x = 135,360,973,366,930.84/11,296,778.72
  6. Step 6: Final answer
    x = 11,982,262.98

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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.