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Finding the Fourth Proportional to 6,463,722.80, 8,919,999.54 and 3,563,217.44

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Solution

The fourth proportional to 6,463,722.80, 8,919,999.54 and 3,563,217.44 is: 4,917,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463,722.80 : 8,919,999.54 = 3,563,217.44 : x
  2. Step 2: Convert to fraction form
    6,463,722.80/8,919,999.54 = 3,563,217.44/x
  3. Step 3: Cross multiply
    6,463,722.80x = 8,919,999.54 × 3,563,217.44
  4. Step 4: Simplify right side
    6,463,722.80x = 31,783,897,925,719.97
  5. Step 5: Solve for x
    x = 31,783,897,925,719.97/6,463,722.80
  6. Step 6: Final answer
    x = 4,917,274.29

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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.