Home / 39,379,042.36-54,343,088.30-21,737,955.16

Finding the Fourth Proportional to 39,379,042.36, 54,343,088.30 and 21,737,955.16

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Solution

The fourth proportional to 39,379,042.36, 54,343,088.30 and 21,737,955.16 is: 29,998,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379,042.36 : 54,343,088.30 = 21,737,955.16 : x
  2. Step 2: Convert to fraction form
    39,379,042.36/54,343,088.30 = 21,737,955.16/x
  3. Step 3: Cross multiply
    39,379,042.36x = 54,343,088.30 × 21,737,955.16
  4. Step 4: Simplify right side
    39,379,042.36x = 1,181,307,616,721,320.50
  5. Step 5: Solve for x
    x = 1,181,307,616,721,320.50/39,379,042.36
  6. Step 6: Final answer
    x = 29,998,383.55

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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.