Home / 18,372,495.78-27,554,633.43-5,415,882.18

Finding the Fourth Proportional to 18,372,495.78, 27,554,633.43 and 5,415,882.18

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Solution

The fourth proportional to 18,372,495.78, 27,554,633.43 and 5,415,882.18 is: 8,122,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,495.78 : 27,554,633.43 = 5,415,882.18 : x
  2. Step 2: Convert to fraction form
    18,372,495.78/27,554,633.43 = 5,415,882.18/x
  3. Step 3: Cross multiply
    18,372,495.78x = 27,554,633.43 × 5,415,882.18
  4. Step 4: Simplify right side
    18,372,495.78x = 149,232,648,169,969.28
  5. Step 5: Solve for x
    x = 149,232,648,169,969.28/18,372,495.78
  6. Step 6: Final answer
    x = 8,122,611.64

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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.