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Finding the Fourth Proportional to 8,314,918.20, 12,463,046.10 and 4,722,406.20

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Solution

The fourth proportional to 8,314,918.20, 12,463,046.10 and 4,722,406.20 is: 7,078,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314,918.20 : 12,463,046.10 = 4,722,406.20 : x
  2. Step 2: Convert to fraction form
    8,314,918.20/12,463,046.10 = 4,722,406.20/x
  3. Step 3: Cross multiply
    8,314,918.20x = 12,463,046.10 × 4,722,406.20
  4. Step 4: Simplify right side
    8,314,918.20x = 58,855,566,173,525.82
  5. Step 5: Solve for x
    x = 58,855,566,173,525.82/8,314,918.20
  6. Step 6: Final answer
    x = 7,078,309.70

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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.