Home / 21,135,524.40-31,693,293.83-8,187,739.61

Finding the Fourth Proportional to 21,135,524.40, 31,693,293.83 and 8,187,739.61

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Solution

The fourth proportional to 21,135,524.40, 31,693,293.83 and 8,187,739.61 is: 12,277,738.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,524.40 : 31,693,293.83 = 8,187,739.61 : x
  2. Step 2: Convert to fraction form
    21,135,524.40/31,693,293.83 = 8,187,739.61/x
  3. Step 3: Cross multiply
    21,135,524.40x = 31,693,293.83 × 8,187,739.61
  4. Step 4: Simplify right side
    21,135,524.40x = 259,496,437,125,262.50
  5. Step 5: Solve for x
    x = 259,496,437,125,262.50/21,135,524.40
  6. Step 6: Final answer
    x = 12,277,738.29

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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.