Home / 12,187,786.50-16,819,147.80-6,755,278.50

Finding the Fourth Proportional to 12,187,786.50, 16,819,147.80 and 6,755,278.50

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Solution

The fourth proportional to 12,187,786.50, 16,819,147.80 and 6,755,278.50 is: 9,322,285.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187,786.50 : 16,819,147.80 = 6,755,278.50 : x
  2. Step 2: Convert to fraction form
    12,187,786.50/16,819,147.80 = 6,755,278.50/x
  3. Step 3: Cross multiply
    12,187,786.50x = 16,819,147.80 × 6,755,278.50
  4. Step 4: Simplify right side
    12,187,786.50x = 113,618,027,521,662.31
  5. Step 5: Solve for x
    x = 113,618,027,521,662.31/12,187,786.50
  6. Step 6: Final answer
    x = 9,322,285.68

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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.