Home / 20,188,838.59-27,860,455.53-11,021,481.34

Finding the Fourth Proportional to 20,188,838.59, 27,860,455.53 and 11,021,481.34

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Solution

The fourth proportional to 20,188,838.59, 27,860,455.53 and 11,021,481.34 is: 15,209,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,838.59 : 27,860,455.53 = 11,021,481.34 : x
  2. Step 2: Convert to fraction form
    20,188,838.59/27,860,455.53 = 11,021,481.34/x
  3. Step 3: Cross multiply
    20,188,838.59x = 27,860,455.53 × 11,021,481.34
  4. Step 4: Simplify right side
    20,188,838.59x = 307,063,490,741,289.88
  5. Step 5: Solve for x
    x = 307,063,490,741,289.88/20,188,838.59
  6. Step 6: Final answer
    x = 15,209,566.88

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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.