Home / 20,188,838.97-27,860,456.05-11,021,481.72

Finding the Fourth Proportional to 20,188,838.97, 27,860,456.05 and 11,021,481.72

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Solution

The fourth proportional to 20,188,838.97, 27,860,456.05 and 11,021,481.72 is: 15,209,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,838.97 : 27,860,456.05 = 11,021,481.72 : x
  2. Step 2: Convert to fraction form
    20,188,838.97/27,860,456.05 = 11,021,481.72/x
  3. Step 3: Cross multiply
    20,188,838.97x = 27,860,456.05 × 11,021,481.72
  4. Step 4: Simplify right side
    20,188,838.97x = 307,063,507,038,384.69
  5. Step 5: Solve for x
    x = 307,063,507,038,384.69/20,188,838.97
  6. Step 6: Final answer
    x = 15,209,567.40

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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.