Home / 20,945,270.11-28,904,283.79-11,777,978.47

Finding the Fourth Proportional to 20,945,270.11, 28,904,283.79 and 11,777,978.47

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Solution

The fourth proportional to 20,945,270.11, 28,904,283.79 and 11,777,978.47 is: 16,253,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945,270.11 : 28,904,283.79 = 11,777,978.47 : x
  2. Step 2: Convert to fraction form
    20,945,270.11/28,904,283.79 = 11,777,978.47/x
  3. Step 3: Cross multiply
    20,945,270.11x = 28,904,283.79 × 11,777,978.47
  4. Step 4: Simplify right side
    20,945,270.11x = 340,434,032,169,390
  5. Step 5: Solve for x
    x = 340,434,032,169,390/20,945,270.11
  6. Step 6: Final answer
    x = 16,253,504.03

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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.