Home / 20,753,120.89-31,148,571.77-11,045,883.55

Finding the Fourth Proportional to 20,753,120.89, 31,148,571.77 and 11,045,883.55

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Solution

The fourth proportional to 20,753,120.89, 31,148,571.77 and 11,045,883.55 is: 16,578,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753,120.89 : 31,148,571.77 = 11,045,883.55 : x
  2. Step 2: Convert to fraction form
    20,753,120.89/31,148,571.77 = 11,045,883.55/x
  3. Step 3: Cross multiply
    20,753,120.89x = 31,148,571.77 × 11,045,883.55
  4. Step 4: Simplify right side
    20,753,120.89x = 344,063,496,520,237.38
  5. Step 5: Solve for x
    x = 344,063,496,520,237.38/20,753,120.89
  6. Step 6: Final answer
    x = 16,578,879.79

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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.