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Finding the Fourth Proportional to 6,389,747.36, 8,818,209.96 and 3,489,407.92

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Solution

The fourth proportional to 6,389,747.36, 8,818,209.96 and 3,489,407.92 is: 4,815,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389,747.36 : 8,818,209.96 = 3,489,407.92 : x
  2. Step 2: Convert to fraction form
    6,389,747.36/8,818,209.96 = 3,489,407.92/x
  3. Step 3: Cross multiply
    6,389,747.36x = 8,818,209.96 × 3,489,407.92
  4. Step 4: Simplify right side
    6,389,747.36x = 30,770,331,674,646.89
  5. Step 5: Solve for x
    x = 30,770,331,674,646.89/6,389,747.36
  6. Step 6: Final answer
    x = 4,815,578.76

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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.