Home / 18,722,141.48-25,828,861.20-11,378,791.64

Finding the Fourth Proportional to 18,722,141.48, 25,828,861.20 and 11,378,791.64

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Solution

The fourth proportional to 18,722,141.48, 25,828,861.20 and 11,378,791.64 is: 15,698,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,141.48 : 25,828,861.20 = 11,378,791.64 : x
  2. Step 2: Convert to fraction form
    18,722,141.48/25,828,861.20 = 11,378,791.64/x
  3. Step 3: Cross multiply
    18,722,141.48x = 25,828,861.20 × 11,378,791.64
  4. Step 4: Simplify right side
    18,722,141.48x = 293,901,229,893,280.38
  5. Step 5: Solve for x
    x = 293,901,229,893,280.38/18,722,141.48
  6. Step 6: Final answer
    x = 15,698,056.24

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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.