Home / 138,417,866.51-207,647,442.20-50,972,658.44

Finding the Fourth Proportional to 138,417,866.51, 207,647,442.20 and 50,972,658.44

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Solution

The fourth proportional to 138,417,866.51, 207,647,442.20 and 50,972,658.44 is: 76,466,589.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,417,866.51 : 207,647,442.20 = 50,972,658.44 : x
  2. Step 2: Convert to fraction form
    138,417,866.51/207,647,442.20 = 50,972,658.44/x
  3. Step 3: Cross multiply
    138,417,866.51x = 207,647,442.20 × 50,972,658.44
  4. Step 4: Simplify right side
    138,417,866.51x = 10,584,342,146,289,436
  5. Step 5: Solve for x
    x = 10,584,342,146,289,436/138,417,866.51
  6. Step 6: Final answer
    x = 76,466,589.27

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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.