Home / 280,040,199.48-386,445,346.74-154,589,702.85

Finding the Fourth Proportional to 280,040,199.48, 386,445,346.74 and 154,589,702.85

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Solution

The fourth proportional to 280,040,199.48, 386,445,346.74 and 154,589,702.85 is: 213,328,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040,199.48 : 386,445,346.74 = 154,589,702.85 : x
  2. Step 2: Convert to fraction form
    280,040,199.48/386,445,346.74 = 154,589,702.85/x
  3. Step 3: Cross multiply
    280,040,199.48x = 386,445,346.74 × 154,589,702.85
  4. Step 4: Simplify right side
    280,040,199.48x = 59,740,471,320,301,816
  5. Step 5: Solve for x
    x = 59,740,471,320,301,816/280,040,199.48
  6. Step 6: Final answer
    x = 213,328,198.71

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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.