Home / 353,399,147.78-487,743,843.43-268,486,537.29

Finding the Fourth Proportional to 353,399,147.78, 487,743,843.43 and 268,486,537.29

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Solution

The fourth proportional to 353,399,147.78, 487,743,843.43 and 268,486,537.29 is: 370,551,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,399,147.78 : 487,743,843.43 = 268,486,537.29 : x
  2. Step 2: Convert to fraction form
    353,399,147.78/487,743,843.43 = 268,486,537.29/x
  3. Step 3: Cross multiply
    353,399,147.78x = 487,743,843.43 × 268,486,537.29
  4. Step 4: Simplify right side
    353,399,147.78x = 130,952,655,605,543,184
  5. Step 5: Solve for x
    x = 130,952,655,605,543,184/353,399,147.78
  6. Step 6: Final answer
    x = 370,551,701.75

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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.