Home / 12,760,697.80-17,608,470.42-7,865,135.56

Finding the Fourth Proportional to 12,760,697.80, 17,608,470.42 and 7,865,135.56

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Solution

The fourth proportional to 12,760,697.80, 17,608,470.42 and 7,865,135.56 is: 10,853,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760,697.80 : 17,608,470.42 = 7,865,135.56 : x
  2. Step 2: Convert to fraction form
    12,760,697.80/17,608,470.42 = 7,865,135.56/x
  3. Step 3: Cross multiply
    12,760,697.80x = 17,608,470.42 × 7,865,135.56
  4. Step 4: Simplify right side
    12,760,697.80x = 138,493,006,857,550.14
  5. Step 5: Solve for x
    x = 138,493,006,857,550.14/12,760,697.80
  6. Step 6: Final answer
    x = 10,853,090.41

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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.