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Finding the Fourth Proportional to 8,463,224.54, 11,679,083.06 and 4,978,939.88

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Solution

The fourth proportional to 8,463,224.54, 11,679,083.06 and 4,978,939.88 is: 6,870,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463,224.54 : 11,679,083.06 = 4,978,939.88 : x
  2. Step 2: Convert to fraction form
    8,463,224.54/11,679,083.06 = 4,978,939.88/x
  3. Step 3: Cross multiply
    8,463,224.54x = 11,679,083.06 × 4,978,939.88
  4. Step 4: Simplify right side
    8,463,224.54x = 58,149,452,413,569.45
  5. Step 5: Solve for x
    x = 58,149,452,413,569.45/8,463,224.54
  6. Step 6: Final answer
    x = 6,870,838.90

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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.