Home / 12,129,262.74-16,738,255.49-6,622,620.57

Finding the Fourth Proportional to 12,129,262.74, 16,738,255.49 and 6,622,620.57

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Solution

The fourth proportional to 12,129,262.74, 16,738,255.49 and 6,622,620.57 is: 9,139,146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,262.74 : 16,738,255.49 = 6,622,620.57 : x
  2. Step 2: Convert to fraction form
    12,129,262.74/16,738,255.49 = 6,622,620.57/x
  3. Step 3: Cross multiply
    12,129,262.74x = 16,738,255.49 × 6,622,620.57
  4. Step 4: Simplify right side
    12,129,262.74x = 110,851,115,080,876.33
  5. Step 5: Solve for x
    x = 110,851,115,080,876.33/12,129,262.74
  6. Step 6: Final answer
    x = 9,139,146.99

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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.