Home / 13,899,309.14-19,181,033.79-7,787,781.38

Finding the Fourth Proportional to 13,899,309.14, 19,181,033.79 and 7,787,781.38

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Solution

The fourth proportional to 13,899,309.14, 19,181,033.79 and 7,787,781.38 is: 10,747,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899,309.14 : 19,181,033.79 = 7,787,781.38 : x
  2. Step 2: Convert to fraction form
    13,899,309.14/19,181,033.79 = 7,787,781.38/x
  3. Step 3: Cross multiply
    13,899,309.14x = 19,181,033.79 × 7,787,781.38
  4. Step 4: Simplify right side
    13,899,309.14x = 149,377,697,817,661.22
  5. Step 5: Solve for x
    x = 149,377,697,817,661.22/13,899,309.14
  6. Step 6: Final answer
    x = 10,747,131.12

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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.