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Finding the Fourth Proportional to 12,647,698.74, 18,978,563.05 and 6,170,827.30

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Solution

The fourth proportional to 12,647,698.74, 18,978,563.05 and 6,170,827.30 is: 9,259,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647,698.74 : 18,978,563.05 = 6,170,827.30 : x
  2. Step 2: Convert to fraction form
    12,647,698.74/18,978,563.05 = 6,170,827.30/x
  3. Step 3: Cross multiply
    12,647,698.74x = 18,978,563.05 × 6,170,827.30
  4. Step 4: Simplify right side
    12,647,698.74x = 117,113,434,920,837.80
  5. Step 5: Solve for x
    x = 117,113,434,920,837.80/12,647,698.74
  6. Step 6: Final answer
    x = 9,259,663.54

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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.