Home / 12,138,708.16-16,751,221.21-6,631,964.48

Finding the Fourth Proportional to 12,138,708.16, 16,751,221.21 and 6,631,964.48

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Solution

The fourth proportional to 12,138,708.16, 16,751,221.21 and 6,631,964.48 is: 9,152,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,708.16 : 16,751,221.21 = 6,631,964.48 : x
  2. Step 2: Convert to fraction form
    12,138,708.16/16,751,221.21 = 6,631,964.48/x
  3. Step 3: Cross multiply
    12,138,708.16x = 16,751,221.21 × 6,631,964.48
  4. Step 4: Simplify right side
    12,138,708.16x = 111,093,504,111,510.62
  5. Step 5: Solve for x
    x = 111,093,504,111,510.62/12,138,708.16
  6. Step 6: Final answer
    x = 9,152,003.87

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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.