Home / 20,188,838.22-27,860,455.01-11,021,480.97

Finding the Fourth Proportional to 20,188,838.22, 27,860,455.01 and 11,021,480.97

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Solution

The fourth proportional to 20,188,838.22, 27,860,455.01 and 11,021,480.97 is: 15,209,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,838.22 : 27,860,455.01 = 11,021,480.97 : x
  2. Step 2: Convert to fraction form
    20,188,838.22/27,860,455.01 = 11,021,480.97/x
  3. Step 3: Cross multiply
    20,188,838.22x = 27,860,455.01 × 11,021,480.97
  4. Step 4: Simplify right side
    20,188,838.22x = 307,063,474,600,329.75
  5. Step 5: Solve for x
    x = 307,063,474,600,329.75/20,188,838.22
  6. Step 6: Final answer
    x = 15,209,566.36

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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.