Home / 479,397,272.72-661,379,993.44-278,419,933.44

Finding the Fourth Proportional to 479,397,272.72, 661,379,993.44 and 278,419,933.44

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Solution

The fourth proportional to 479,397,272.72, 661,379,993.44 and 278,419,933.44 is: 384,110,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,397,272.72 : 661,379,993.44 = 278,419,933.44 : x
  2. Step 2: Convert to fraction form
    479,397,272.72/661,379,993.44 = 278,419,933.44/x
  3. Step 3: Cross multiply
    479,397,272.72x = 661,379,993.44 × 278,419,933.44
  4. Step 4: Simplify right side
    479,397,272.72x = 184,141,373,752,112,448
  5. Step 5: Solve for x
    x = 184,141,373,752,112,448/479,397,272.72
  6. Step 6: Final answer
    x = 384,110,182.16

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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.