Home / 39,379,195,468.80-54,343,292,403.24-21,557,852,974.80

Finding the Fourth Proportional to 39,379,195,468.80, 54,343,292,403.24 and 21,557,852,974.80

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Solution

The fourth proportional to 39,379,195,468.80, 54,343,292,403.24 and 21,557,852,974.80 is: 29,749,838,559.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379,195,468.80 : 54,343,292,403.24 = 21,557,852,974.80 : x
  2. Step 2: Convert to fraction form
    39,379,195,468.80/54,343,292,403.24 = 21,557,852,974.80/x
  3. Step 3: Cross multiply
    39,379,195,468.80x = 54,343,292,403.24 × 21,557,852,974.80
  4. Step 4: Simplify right side
    39,379,195,468.80x = 1,171,524,707,795,613,646,848
  5. Step 5: Solve for x
    x = 1,171,524,707,795,613,646,848/39,379,195,468.80
  6. Step 6: Final answer
    x = 29,749,838,559.39

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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.