Home / 18,267,745-27,358,227.42-11,858,143.72

Finding the Fourth Proportional to 18,267,745, 27,358,227.42 and 11,858,143.72

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Solution

The fourth proportional to 18,267,745, 27,358,227.42 and 11,858,143.72 is: 17,759,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267,745 : 27,358,227.42 = 11,858,143.72 : x
  2. Step 2: Convert to fraction form
    18,267,745/27,358,227.42 = 11,858,143.72/x
  3. Step 3: Cross multiply
    18,267,745x = 27,358,227.42 × 11,858,143.72
  4. Step 4: Simplify right side
    18,267,745x = 324,417,792,670,804.81
  5. Step 5: Solve for x
    x = 324,417,792,670,804.81/18,267,745
  6. Step 6: Final answer
    x = 17,759,049.77

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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.