Home / 12,776,918.91-17,629,453.49-8,129,025.51

Finding the Fourth Proportional to 12,776,918.91, 17,629,453.49 and 8,129,025.51

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Solution

The fourth proportional to 12,776,918.91, 17,629,453.49 and 8,129,025.51 is: 11,216,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,918.91 : 17,629,453.49 = 8,129,025.51 : x
  2. Step 2: Convert to fraction form
    12,776,918.91/17,629,453.49 = 8,129,025.51/x
  3. Step 3: Cross multiply
    12,776,918.91x = 17,629,453.49 × 8,129,025.51
  4. Step 4: Simplify right side
    12,776,918.91x = 143,310,277,106,923.41
  5. Step 5: Solve for x
    x = 143,310,277,106,923.41/12,776,918.91
  6. Step 6: Final answer
    x = 11,216,340.82

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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.