Home / 681,439,354.73-940,384,450.82-380,024,993.64

Finding the Fourth Proportional to 681,439,354.73, 940,384,450.82 and 380,024,993.64

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Solution

The fourth proportional to 681,439,354.73, 940,384,450.82 and 380,024,993.64 is: 524,433,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,439,354.73 : 940,384,450.82 = 380,024,993.64 : x
  2. Step 2: Convert to fraction form
    681,439,354.73/940,384,450.82 = 380,024,993.64/x
  3. Step 3: Cross multiply
    681,439,354.73x = 940,384,450.82 × 380,024,993.64
  4. Step 4: Simplify right side
    681,439,354.73x = 357,369,594,942,025,408
  5. Step 5: Solve for x
    x = 357,369,594,942,025,408/681,439,354.73
  6. Step 6: Final answer
    x = 524,433,454.66

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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.