Home / 21,285,835.40-31,933,418.70-6,906,456.20

Finding the Fourth Proportional to 21,285,835.40, 31,933,418.70 and 6,906,456.20

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Solution

The fourth proportional to 21,285,835.40, 31,933,418.70 and 6,906,456.20 is: 10,361,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,835.40 : 31,933,418.70 = 6,906,456.20 : x
  2. Step 2: Convert to fraction form
    21,285,835.40/31,933,418.70 = 6,906,456.20/x
  3. Step 3: Cross multiply
    21,285,835.40x = 31,933,418.70 × 6,906,456.20
  4. Step 4: Simplify right side
    21,285,835.40x = 220,546,757,567,810.94
  5. Step 5: Solve for x
    x = 220,546,757,567,810.94/21,285,835.40
  6. Step 6: Final answer
    x = 10,361,198.11

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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.