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Finding the Fourth Proportional to 5,471,999.20, 8,207,998.80 and 5,471,999.20

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Solution

The fourth proportional to 5,471,999.20, 8,207,998.80 and 5,471,999.20 is: 8,207,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471,999.20 : 8,207,998.80 = 5,471,999.20 : x
  2. Step 2: Convert to fraction form
    5,471,999.20/8,207,998.80 = 5,471,999.20/x
  3. Step 3: Cross multiply
    5,471,999.20x = 8,207,998.80 × 5,471,999.20
  4. Step 4: Simplify right side
    5,471,999.20x = 44,914,162,867,200.96
  5. Step 5: Solve for x
    x = 44,914,162,867,200.96/5,471,999.20
  6. Step 6: Final answer
    x = 8,207,998.80

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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.