Home / 15,196,138.96-20,970,676.84-8,321,056.56

Finding the Fourth Proportional to 15,196,138.96, 20,970,676.84 and 8,321,056.56

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Solution

The fourth proportional to 15,196,138.96, 20,970,676.84 and 8,321,056.56 is: 11,483,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,138.96 : 20,970,676.84 = 8,321,056.56 : x
  2. Step 2: Convert to fraction form
    15,196,138.96/20,970,676.84 = 8,321,056.56/x
  3. Step 3: Cross multiply
    15,196,138.96x = 20,970,676.84 × 8,321,056.56
  4. Step 4: Simplify right side
    15,196,138.96x = 174,498,188,087,122.06
  5. Step 5: Solve for x
    x = 174,498,188,087,122.06/15,196,138.96
  6. Step 6: Final answer
    x = 11,483,060.83

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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.