Home / 15,529,960.36-21,431,365.86-8,654,291.56

Finding the Fourth Proportional to 15,529,960.36, 21,431,365.86 and 8,654,291.56

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Solution

The fourth proportional to 15,529,960.36, 21,431,365.86 and 8,654,291.56 is: 11,942,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,529,960.36 : 21,431,365.86 = 8,654,291.56 : x
  2. Step 2: Convert to fraction form
    15,529,960.36/21,431,365.86 = 8,654,291.56/x
  3. Step 3: Cross multiply
    15,529,960.36x = 21,431,365.86 × 8,654,291.56
  4. Step 4: Simplify right side
    15,529,960.36x = 185,473,288,681,470.16
  5. Step 5: Solve for x
    x = 185,473,288,681,470.16/15,529,960.36
  6. Step 6: Final answer
    x = 11,942,933.81

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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.