Home / 11,143,160.80-16,716,839.12-7,940,341.60

Finding the Fourth Proportional to 11,143,160.80, 16,716,839.12 and 7,940,341.60

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Solution

The fourth proportional to 11,143,160.80, 16,716,839.12 and 7,940,341.60 is: 11,912,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143,160.80 : 16,716,839.12 = 7,940,341.60 : x
  2. Step 2: Convert to fraction form
    11,143,160.80/16,716,839.12 = 7,940,341.60/x
  3. Step 3: Cross multiply
    11,143,160.80x = 16,716,839.12 × 7,940,341.60
  4. Step 4: Simplify right side
    11,143,160.80x = 132,737,413,085,043.38
  5. Step 5: Solve for x
    x = 132,737,413,085,043.38/11,143,160.80
  6. Step 6: Final answer
    x = 11,912,007.33

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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.