Home / 12,776,725.30-17,639,839.66-8,133,131.38

Finding the Fourth Proportional to 12,776,725.30, 17,639,839.66 and 8,133,131.38

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Solution

The fourth proportional to 12,776,725.30, 17,639,839.66 and 8,133,131.38 is: 11,228,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,725.30 : 17,639,839.66 = 8,133,131.38 : x
  2. Step 2: Convert to fraction form
    12,776,725.30/17,639,839.66 = 8,133,131.38/x
  3. Step 3: Cross multiply
    12,776,725.30x = 17,639,839.66 × 8,133,131.38
  4. Step 4: Simplify right side
    12,776,725.30x = 143,467,133,476,914.53
  5. Step 5: Solve for x
    x = 143,467,133,476,914.53/12,776,725.30
  6. Step 6: Final answer
    x = 11,228,787.51

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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.