Home / 72,387,112.62-108,579,721.20-17,800,169.34

Finding the Fourth Proportional to 72,387,112.62, 108,579,721.20 and 17,800,169.34

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Solution

The fourth proportional to 72,387,112.62, 108,579,721.20 and 17,800,169.34 is: 26,700,020.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,387,112.62 : 108,579,721.20 = 17,800,169.34 : x
  2. Step 2: Convert to fraction form
    72,387,112.62/108,579,721.20 = 17,800,169.34/x
  3. Step 3: Cross multiply
    72,387,112.62x = 108,579,721.20 × 17,800,169.34
  4. Step 4: Simplify right side
    72,387,112.62x = 1,932,737,424,249,988
  5. Step 5: Solve for x
    x = 1,932,737,424,249,988/72,387,112.62
  6. Step 6: Final answer
    x = 26,700,020.96

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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.