Home / 618,858,467.41-853,947,171.31-418,351,605.44

Finding the Fourth Proportional to 618,858,467.41, 853,947,171.31 and 418,351,605.44

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Solution

The fourth proportional to 618,858,467.41, 853,947,171.31 and 418,351,605.44 is: 577,272,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,858,467.41 : 853,947,171.31 = 418,351,605.44 : x
  2. Step 2: Convert to fraction form
    618,858,467.41/853,947,171.31 = 418,351,605.44/x
  3. Step 3: Cross multiply
    618,858,467.41x = 853,947,171.31 × 418,351,605.44
  4. Step 4: Simplify right side
    618,858,467.41x = 357,250,170,073,370,368
  5. Step 5: Solve for x
    x = 357,250,170,073,370,368/618,858,467.41
  6. Step 6: Final answer
    x = 577,272,815.82

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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.