Home / 448,403,408.40-672,605,112.60-263,981,571.60

Finding the Fourth Proportional to 448,403,408.40, 672,605,112.60 and 263,981,571.60

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Solution

The fourth proportional to 448,403,408.40, 672,605,112.60 and 263,981,571.60 is: 395,972,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,403,408.40 : 672,605,112.60 = 263,981,571.60 : x
  2. Step 2: Convert to fraction form
    448,403,408.40/672,605,112.60 = 263,981,571.60/x
  3. Step 3: Cross multiply
    448,403,408.40x = 672,605,112.60 × 263,981,571.60
  4. Step 4: Simplify right side
    448,403,408.40x = 177,555,354,690,342,976
  5. Step 5: Solve for x
    x = 177,555,354,690,342,976/448,403,408.40
  6. Step 6: Final answer
    x = 395,972,357.40

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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.