Home / 12,149,722.17-16,766,625.78-6,643,009.26

Finding the Fourth Proportional to 12,149,722.17, 16,766,625.78 and 6,643,009.26

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Solution

The fourth proportional to 12,149,722.17, 16,766,625.78 and 6,643,009.26 is: 9,167,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149,722.17 : 16,766,625.78 = 6,643,009.26 : x
  2. Step 2: Convert to fraction form
    12,149,722.17/16,766,625.78 = 6,643,009.26/x
  3. Step 3: Cross multiply
    12,149,722.17x = 16,766,625.78 × 6,643,009.26
  4. Step 4: Simplify right side
    12,149,722.17x = 111,380,850,315,494.72
  5. Step 5: Solve for x
    x = 111,380,850,315,494.72/12,149,722.17
  6. Step 6: Final answer
    x = 9,167,357.80

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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.