Home / 28,760,942.61-39,690,960.32-15,708,817.26

Finding the Fourth Proportional to 28,760,942.61, 39,690,960.32 and 15,708,817.26

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Solution

The fourth proportional to 28,760,942.61, 39,690,960.32 and 15,708,817.26 is: 21,678,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760,942.61 : 39,690,960.32 = 15,708,817.26 : x
  2. Step 2: Convert to fraction form
    28,760,942.61/39,690,960.32 = 15,708,817.26/x
  3. Step 3: Cross multiply
    28,760,942.61x = 39,690,960.32 × 15,708,817.26
  4. Step 4: Simplify right side
    28,760,942.61x = 623,498,042,540,791.12
  5. Step 5: Solve for x
    x = 623,498,042,540,791.12/28,760,942.61
  6. Step 6: Final answer
    x = 21,678,637.28

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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.