Home / 81,950,904.54-122,939,697.51-38,275,338.42

Finding the Fourth Proportional to 81,950,904.54, 122,939,697.51 and 38,275,338.42

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Solution

The fourth proportional to 81,950,904.54, 122,939,697.51 and 38,275,338.42 is: 57,419,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,950,904.54 : 122,939,697.51 = 38,275,338.42 : x
  2. Step 2: Convert to fraction form
    81,950,904.54/122,939,697.51 = 38,275,338.42/x
  3. Step 3: Cross multiply
    81,950,904.54x = 122,939,697.51 × 38,275,338.42
  4. Step 4: Simplify right side
    81,950,904.54x = 4,705,558,527,447,682
  5. Step 5: Solve for x
    x = 4,705,558,527,447,682/81,950,904.54
  6. Step 6: Final answer
    x = 57,419,238.43

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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.