Home / 18,127,186.20-25,015,836.16-9,867,485.89

Finding the Fourth Proportional to 18,127,186.20, 25,015,836.16 and 9,867,485.89

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Solution

The fourth proportional to 18,127,186.20, 25,015,836.16 and 9,867,485.89 is: 13,617,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127,186.20 : 25,015,836.16 = 9,867,485.89 : x
  2. Step 2: Convert to fraction form
    18,127,186.20/25,015,836.16 = 9,867,485.89/x
  3. Step 3: Cross multiply
    18,127,186.20x = 25,015,836.16 × 9,867,485.89
  4. Step 4: Simplify right side
    18,127,186.20x = 246,843,410,280,841.66
  5. Step 5: Solve for x
    x = 246,843,410,280,841.66/18,127,186.20
  6. Step 6: Final answer
    x = 13,617,304.29

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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.