Home / 39,379,044.92-54,343,091.79-21,737,957.72

Finding the Fourth Proportional to 39,379,044.92, 54,343,091.79 and 21,737,957.72

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Solution

The fourth proportional to 39,379,044.92, 54,343,091.79 and 21,737,957.72 is: 29,998,387.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379,044.92 : 54,343,091.79 = 21,737,957.72 : x
  2. Step 2: Convert to fraction form
    39,379,044.92/54,343,091.79 = 21,737,957.72/x
  3. Step 3: Cross multiply
    39,379,044.92x = 54,343,091.79 × 21,737,957.72
  4. Step 4: Simplify right side
    39,379,044.92x = 1,181,307,831,433,383.75
  5. Step 5: Solve for x
    x = 1,181,307,831,433,383.75/39,379,044.92
  6. Step 6: Final answer
    x = 29,998,387.06

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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.