Home / 12,418,890.82-17,138,231.64-6,837,786.43

Finding the Fourth Proportional to 12,418,890.82, 17,138,231.64 and 6,837,786.43

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Solution

The fourth proportional to 12,418,890.82, 17,138,231.64 and 6,837,786.43 is: 9,436,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418,890.82 : 17,138,231.64 = 6,837,786.43 : x
  2. Step 2: Convert to fraction form
    12,418,890.82/17,138,231.64 = 6,837,786.43/x
  3. Step 3: Cross multiply
    12,418,890.82x = 17,138,231.64 × 6,837,786.43
  4. Step 4: Simplify right side
    12,418,890.82x = 117,187,567,699,343.08
  5. Step 5: Solve for x
    x = 117,187,567,699,343.08/12,418,890.82
  6. Step 6: Final answer
    x = 9,436,234.64

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1.5x scale

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.