Home / 20,188,843.72-27,860,462.60-11,021,486.46

Finding the Fourth Proportional to 20,188,843.72, 27,860,462.60 and 11,021,486.46

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Solution

The fourth proportional to 20,188,843.72, 27,860,462.60 and 11,021,486.46 is: 15,209,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,843.72 : 27,860,462.60 = 11,021,486.46 : x
  2. Step 2: Convert to fraction form
    20,188,843.72/27,860,462.60 = 11,021,486.46/x
  3. Step 3: Cross multiply
    20,188,843.72x = 27,860,462.60 × 11,021,486.46
  4. Step 4: Simplify right side
    20,188,843.72x = 307,063,711,315,236.44
  5. Step 5: Solve for x
    x = 307,063,711,315,236.44/20,188,843.72
  6. Step 6: Final answer
    x = 15,209,573.94

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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.