Home / 10,667,750.20-15,978,005.70-8,778,182.20

Finding the Fourth Proportional to 10,667,750.20, 15,978,005.70 and 8,778,182.20

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Solution

The fourth proportional to 10,667,750.20, 15,978,005.70 and 8,778,182.20 is: 13,147,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,667,750.20 : 15,978,005.70 = 8,778,182.20 : x
  2. Step 2: Convert to fraction form
    10,667,750.20/15,978,005.70 = 8,778,182.20/x
  3. Step 3: Cross multiply
    10,667,750.20x = 15,978,005.70 × 8,778,182.20
  4. Step 4: Simplify right side
    10,667,750.20x = 140,257,845,227,238.52
  5. Step 5: Solve for x
    x = 140,257,845,227,238.52/10,667,750.20
  6. Step 6: Final answer
    x = 13,147,837.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.