Home / 18,649,283,439.31-27,988,431,477.56-13,016,628,438.58

Finding the Fourth Proportional to 18,649,283,439.31, 27,988,431,477.56 and 13,016,628,438.58

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Solution

The fourth proportional to 18,649,283,439.31, 27,988,431,477.56 and 13,016,628,438.58 is: 19,535,067,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649,283,439.31 : 27,988,431,477.56 = 13,016,628,438.58 : x
  2. Step 2: Convert to fraction form
    18,649,283,439.31/27,988,431,477.56 = 13,016,628,438.58/x
  3. Step 3: Cross multiply
    18,649,283,439.31x = 27,988,431,477.56 × 13,016,628,438.58
  4. Step 4: Simplify right side
    18,649,283,439.31x = 364,315,013,122,055,143,424
  5. Step 5: Solve for x
    x = 364,315,013,122,055,143,424/18,649,283,439.31
  6. Step 6: Final answer
    x = 19,535,067,623.79

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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.