Home / 858,650,058.78-1,288,180,578.60-276,438,728.58

Finding the Fourth Proportional to 858,650,058.78, 1,288,180,578.60 and 276,438,728.58

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Solution

The fourth proportional to 858,650,058.78, 1,288,180,578.60 and 276,438,728.58 is: 414,724,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,650,058.78 : 1,288,180,578.60 = 276,438,728.58 : x
  2. Step 2: Convert to fraction form
    858,650,058.78/1,288,180,578.60 = 276,438,728.58/x
  3. Step 3: Cross multiply
    858,650,058.78x = 1,288,180,578.60 × 276,438,728.58
  4. Step 4: Simplify right side
    858,650,058.78x = 356,103,001,329,632,704
  5. Step 5: Solve for x
    x = 356,103,001,329,632,704/858,650,058.78
  6. Step 6: Final answer
    x = 414,724,249.64

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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.