Home / 154,982,717.76-213,868,249.92-85,366,600.32

Finding the Fourth Proportional to 154,982,717.76, 213,868,249.92 and 85,366,600.32

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Solution

The fourth proportional to 154,982,717.76, 213,868,249.92 and 85,366,600.32 is: 117,801,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,982,717.76 : 213,868,249.92 = 85,366,600.32 : x
  2. Step 2: Convert to fraction form
    154,982,717.76/213,868,249.92 = 85,366,600.32/x
  3. Step 3: Cross multiply
    154,982,717.76x = 213,868,249.92 × 85,366,600.32
  4. Step 4: Simplify right side
    154,982,717.76x = 18,257,205,412,058,508
  5. Step 5: Solve for x
    x = 18,257,205,412,058,508/154,982,717.76
  6. Step 6: Final answer
    x = 117,801,556.69

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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.