Home / 74,261,721.54-111,392,488.45-28,203,504.78

Finding the Fourth Proportional to 74,261,721.54, 111,392,488.45 and 28,203,504.78

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Solution

The fourth proportional to 74,261,721.54, 111,392,488.45 and 28,203,504.78 is: 42,305,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,261,721.54 : 111,392,488.45 = 28,203,504.78 : x
  2. Step 2: Convert to fraction form
    74,261,721.54/111,392,488.45 = 28,203,504.78/x
  3. Step 3: Cross multiply
    74,261,721.54x = 111,392,488.45 × 28,203,504.78
  4. Step 4: Simplify right side
    74,261,721.54x = 3,141,658,580,455,670
  5. Step 5: Solve for x
    x = 3,141,658,580,455,670/74,261,721.54
  6. Step 6: Final answer
    x = 42,305,221.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.