Home / 12,188,203.12-16,825,077.84-8,531,480.80

Finding the Fourth Proportional to 12,188,203.12, 16,825,077.84 and 8,531,480.80

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Solution

The fourth proportional to 12,188,203.12, 16,825,077.84 and 8,531,480.80 is: 11,777,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,203.12 : 16,825,077.84 = 8,531,480.80 : x
  2. Step 2: Convert to fraction form
    12,188,203.12/16,825,077.84 = 8,531,480.80/x
  3. Step 3: Cross multiply
    12,188,203.12x = 16,825,077.84 × 8,531,480.80
  4. Step 4: Simplify right side
    12,188,203.12x = 143,542,828,550,465.47
  5. Step 5: Solve for x
    x = 143,542,828,550,465.47/12,188,203.12
  6. Step 6: Final answer
    x = 11,777,193.66

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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.