Home / 18,732,448,979.82-28,100,325,102.66-5,286,852,653.04

Finding the Fourth Proportional to 18,732,448,979.82, 28,100,325,102.66 and 5,286,852,653.04

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Solution

The fourth proportional to 18,732,448,979.82, 28,100,325,102.66 and 5,286,852,653.04 is: 7,930,745,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732,448,979.82 : 28,100,325,102.66 = 5,286,852,653.04 : x
  2. Step 2: Convert to fraction form
    18,732,448,979.82/28,100,325,102.66 = 5,286,852,653.04/x
  3. Step 3: Cross multiply
    18,732,448,979.82x = 28,100,325,102.66 × 5,286,852,653.04
  4. Step 4: Simplify right side
    18,732,448,979.82x = 148,562,278,320,284,532,736
  5. Step 5: Solve for x
    x = 148,562,278,320,284,532,736/18,732,448,979.82
  6. Step 6: Final answer
    x = 7,930,745,119.36

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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.