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Finding the Fourth Proportional to 8,949,862.80, 13,424,794.20 and 6,449,101.20

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Solution

The fourth proportional to 8,949,862.80, 13,424,794.20 and 6,449,101.20 is: 9,673,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949,862.80 : 13,424,794.20 = 6,449,101.20 : x
  2. Step 2: Convert to fraction form
    8,949,862.80/13,424,794.20 = 6,449,101.20/x
  3. Step 3: Cross multiply
    8,949,862.80x = 13,424,794.20 × 6,449,101.20
  4. Step 4: Simplify right side
    8,949,862.80x = 86,577,856,384,973.03
  5. Step 5: Solve for x
    x = 86,577,856,384,973.03/8,949,862.80
  6. Step 6: Final answer
    x = 9,673,651.80

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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.