Home / 18,165,229.70-25,067,833.83-9,905,271.23

Finding the Fourth Proportional to 18,165,229.70, 25,067,833.83 and 9,905,271.23

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Solution

The fourth proportional to 18,165,229.70, 25,067,833.83 and 9,905,271.23 is: 13,669,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165,229.70 : 25,067,833.83 = 9,905,271.23 : x
  2. Step 2: Convert to fraction form
    18,165,229.70/25,067,833.83 = 9,905,271.23/x
  3. Step 3: Cross multiply
    18,165,229.70x = 25,067,833.83 × 9,905,271.23
  4. Step 4: Simplify right side
    18,165,229.70x = 248,303,693,297,389.28
  5. Step 5: Solve for x
    x = 248,303,693,297,389.28/18,165,229.70
  6. Step 6: Final answer
    x = 13,669,174.43

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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.