Home / 498,113,135,221.78-687,396,789,498.56-269,742,771,055.42

Finding the Fourth Proportional to 498,113,135,221.78, 687,396,789,498.56 and 269,742,771,055.42

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Solution

The fourth proportional to 498,113,135,221.78, 687,396,789,498.56 and 269,742,771,055.42 is: 372,245,383,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,113,135,221.78 : 687,396,789,498.56 = 269,742,771,055.42 : x
  2. Step 2: Convert to fraction form
    498,113,135,221.78/687,396,789,498.56 = 269,742,771,055.42/x
  3. Step 3: Cross multiply
    498,113,135,221.78x = 687,396,789,498.56 × 269,742,771,055.42
  4. Step 4: Simplify right side
    498,113,135,221.78x = 185,420,314,813,940,843,413,504
  5. Step 5: Solve for x
    x = 185,420,314,813,940,843,413,504/498,113,135,221.78
  6. Step 6: Final answer
    x = 372,245,383,032.08

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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.