Home / 38,709,404.37-53,418,567.15-21,305,375.92

Finding the Fourth Proportional to 38,709,404.37, 53,418,567.15 and 21,305,375.92

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Solution

The fourth proportional to 38,709,404.37, 53,418,567.15 and 21,305,375.92 is: 29,401,192.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,709,404.37 : 53,418,567.15 = 21,305,375.92 : x
  2. Step 2: Convert to fraction form
    38,709,404.37/53,418,567.15 = 21,305,375.92/x
  3. Step 3: Cross multiply
    38,709,404.37x = 53,418,567.15 × 21,305,375.92
  4. Step 4: Simplify right side
    38,709,404.37x = 1,138,102,654,238,513
  5. Step 5: Solve for x
    x = 1,138,102,654,238,513/38,709,404.37
  6. Step 6: Final answer
    x = 29,401,192.62

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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.