Home / 498,113,135,187.16-687,396,789,450.72-269,742,771,020.82

Finding the Fourth Proportional to 498,113,135,187.16, 687,396,789,450.72 and 269,742,771,020.82

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Solution

The fourth proportional to 498,113,135,187.16, 687,396,789,450.72 and 269,742,771,020.82 is: 372,245,382,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,113,135,187.16 : 687,396,789,450.72 = 269,742,771,020.82 : x
  2. Step 2: Convert to fraction form
    498,113,135,187.16/687,396,789,450.72 = 269,742,771,020.82/x
  3. Step 3: Cross multiply
    498,113,135,187.16x = 687,396,789,450.72 × 269,742,771,020.82
  4. Step 4: Simplify right side
    498,113,135,187.16x = 185,420,314,777,252,393,910,272
  5. Step 5: Solve for x
    x = 185,420,314,777,252,393,910,272/498,113,135,187.16
  6. Step 6: Final answer
    x = 372,245,382,984.30

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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.