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Finding the Fourth Proportional to 6,388,937.71, 8,815,694.13 and 3,775,078.34

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Solution

The fourth proportional to 6,388,937.71, 8,815,694.13 and 3,775,078.34 is: 5,208,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388,937.71 : 8,815,694.13 = 3,775,078.34 : x
  2. Step 2: Convert to fraction form
    6,388,937.71/8,815,694.13 = 3,775,078.34/x
  3. Step 3: Cross multiply
    6,388,937.71x = 8,815,694.13 × 3,775,078.34
  4. Step 4: Simplify right side
    6,388,937.71x = 33,279,935,951,208.53
  5. Step 5: Solve for x
    x = 33,279,935,951,208.53/6,388,937.71
  6. Step 6: Final answer
    x = 5,208,993.65

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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.