Home / 39,782,562,087.12-54,899,656,397.49-21,718,078,297.12

Finding the Fourth Proportional to 39,782,562,087.12, 54,899,656,397.49 and 21,718,078,297.12

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Solution

The fourth proportional to 39,782,562,087.12, 54,899,656,397.49 and 21,718,078,297.12 is: 29,970,795,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782,562,087.12 : 54,899,656,397.49 = 21,718,078,297.12 : x
  2. Step 2: Convert to fraction form
    39,782,562,087.12/54,899,656,397.49 = 21,718,078,297.12/x
  3. Step 3: Cross multiply
    39,782,562,087.12x = 54,899,656,397.49 × 21,718,078,297.12
  4. Step 4: Simplify right side
    39,782,562,087.12x = 1,192,315,036,125,848,928,256
  5. Step 5: Solve for x
    x = 1,192,315,036,125,848,928,256/39,782,562,087.12
  6. Step 6: Final answer
    x = 29,970,795,584.13

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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.