Home / 18,166,215-25,069,982.09-9,906,729.31

Finding the Fourth Proportional to 18,166,215, 25,069,982.09 and 9,906,729.31

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Solution

The fourth proportional to 18,166,215, 25,069,982.09 and 9,906,729.31 is: 13,671,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166,215 : 25,069,982.09 = 9,906,729.31 : x
  2. Step 2: Convert to fraction form
    18,166,215/25,069,982.09 = 9,906,729.31/x
  3. Step 3: Cross multiply
    18,166,215x = 25,069,982.09 × 9,906,729.31
  4. Step 4: Simplify right side
    18,166,215x = 248,361,526,372,178.06
  5. Step 5: Solve for x
    x = 248,361,526,372,178.06/18,166,215
  6. Step 6: Final answer
    x = 13,671,616.59

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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.