Home / 280,040,107.34-386,445,217.74-154,589,608.82

Finding the Fourth Proportional to 280,040,107.34, 386,445,217.74 and 154,589,608.82

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Solution

The fourth proportional to 280,040,107.34, 386,445,217.74 and 154,589,608.82 is: 213,328,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040,107.34 : 386,445,217.74 = 154,589,608.82 : x
  2. Step 2: Convert to fraction form
    280,040,107.34/386,445,217.74 = 154,589,608.82/x
  3. Step 3: Cross multiply
    280,040,107.34x = 386,445,217.74 × 154,589,608.82
  4. Step 4: Simplify right side
    280,040,107.34x = 59,740,415,040,786,320
  5. Step 5: Solve for x
    x = 59,740,415,040,786,320/280,040,107.34
  6. Step 6: Final answer
    x = 213,328,067.93

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1.5x scale

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.