Home / 18,721,815.10-28,085,833.05-7,362,634.30

Finding the Fourth Proportional to 18,721,815.10, 28,085,833.05 and 7,362,634.30

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Solution

The fourth proportional to 18,721,815.10, 28,085,833.05 and 7,362,634.30 is: 11,045,174.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,815.10 : 28,085,833.05 = 7,362,634.30 : x
  2. Step 2: Convert to fraction form
    18,721,815.10/28,085,833.05 = 7,362,634.30/x
  3. Step 3: Cross multiply
    18,721,815.10x = 28,085,833.05 × 7,362,634.30
  4. Step 4: Simplify right side
    18,721,815.10x = 206,785,717,758,003.62
  5. Step 5: Solve for x
    x = 206,785,717,758,003.62/18,721,815.10
  6. Step 6: Final answer
    x = 11,045,174.66

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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.