Home / 21,398,982.52-29,530,592.40-12,231,822.12

Finding the Fourth Proportional to 21,398,982.52, 29,530,592.40 and 12,231,822.12

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Solution

The fourth proportional to 21,398,982.52, 29,530,592.40 and 12,231,822.12 is: 16,879,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398,982.52 : 29,530,592.40 = 12,231,822.12 : x
  2. Step 2: Convert to fraction form
    21,398,982.52/29,530,592.40 = 12,231,822.12/x
  3. Step 3: Cross multiply
    21,398,982.52x = 29,530,592.40 × 12,231,822.12
  4. Step 4: Simplify right side
    21,398,982.52x = 361,212,953,335,023.88
  5. Step 5: Solve for x
    x = 361,212,953,335,023.88/21,398,982.52
  6. Step 6: Final answer
    x = 16,879,912.54

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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.