Home / 12,843,378.12-17,726,436.67-7,619,285.97

Finding the Fourth Proportional to 12,843,378.12, 17,726,436.67 and 7,619,285.97

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Solution

The fourth proportional to 12,843,378.12, 17,726,436.67 and 7,619,285.97 is: 10,516,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843,378.12 : 17,726,436.67 = 7,619,285.97 : x
  2. Step 2: Convert to fraction form
    12,843,378.12/17,726,436.67 = 7,619,285.97/x
  3. Step 3: Cross multiply
    12,843,378.12x = 17,726,436.67 × 7,619,285.97
  4. Step 4: Simplify right side
    12,843,378.12x = 135,062,790,217,824.53
  5. Step 5: Solve for x
    x = 135,062,790,217,824.53/12,843,378.12
  6. Step 6: Final answer
    x = 10,516,142.17

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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.