Home / 18,351,557,930.46-25,315,981,915.60-11,585,761,729.50

Finding the Fourth Proportional to 18,351,557,930.46, 25,315,981,915.60 and 11,585,761,729.50

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Solution

The fourth proportional to 18,351,557,930.46, 25,315,981,915.60 and 11,585,761,729.50 is: 15,982,563,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351,557,930.46 : 25,315,981,915.60 = 11,585,761,729.50 : x
  2. Step 2: Convert to fraction form
    18,351,557,930.46/25,315,981,915.60 = 11,585,761,729.50/x
  3. Step 3: Cross multiply
    18,351,557,930.46x = 25,315,981,915.60 × 11,585,761,729.50
  4. Step 4: Simplify right side
    18,351,557,930.46x = 293,304,934,422,472,556,544
  5. Step 5: Solve for x
    x = 293,304,934,422,472,556,544/18,351,557,930.46
  6. Step 6: Final answer
    x = 15,982,563,198.93

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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.