Home / 38,527,009.52-53,166,992.12-21,123,067.68

Finding the Fourth Proportional to 38,527,009.52, 53,166,992.12 and 21,123,067.68

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Solution

The fourth proportional to 38,527,009.52, 53,166,992.12 and 21,123,067.68 is: 29,149,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,527,009.52 : 53,166,992.12 = 21,123,067.68 : x
  2. Step 2: Convert to fraction form
    38,527,009.52/53,166,992.12 = 21,123,067.68/x
  3. Step 3: Cross multiply
    38,527,009.52x = 53,166,992.12 × 21,123,067.68
  4. Step 4: Simplify right side
    38,527,009.52x = 1,123,049,972,892,786.62
  5. Step 5: Solve for x
    x = 1,123,049,972,892,786.62/38,527,009.52
  6. Step 6: Final answer
    x = 29,149,679.33

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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.