Home / 12,181,743.09-16,810,803.18-7,287,171.48

Finding the Fourth Proportional to 12,181,743.09, 16,810,803.18 and 7,287,171.48

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Solution

The fourth proportional to 12,181,743.09, 16,810,803.18 and 7,287,171.48 is: 10,056,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181,743.09 : 16,810,803.18 = 7,287,171.48 : x
  2. Step 2: Convert to fraction form
    12,181,743.09/16,810,803.18 = 7,287,171.48/x
  3. Step 3: Cross multiply
    12,181,743.09x = 16,810,803.18 × 7,287,171.48
  4. Step 4: Simplify right side
    12,181,743.09x = 122,503,205,489,189.31
  5. Step 5: Solve for x
    x = 122,503,205,489,189.31/12,181,743.09
  6. Step 6: Final answer
    x = 10,056,295.28

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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.