Home / 13,649,918.56-18,837,016.26-7,769,265.64

Finding the Fourth Proportional to 13,649,918.56, 18,837,016.26 and 7,769,265.64

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Solution

The fourth proportional to 13,649,918.56, 18,837,016.26 and 7,769,265.64 is: 10,721,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649,918.56 : 18,837,016.26 = 7,769,265.64 : x
  2. Step 2: Convert to fraction form
    13,649,918.56/18,837,016.26 = 7,769,265.64/x
  3. Step 3: Cross multiply
    13,649,918.56x = 18,837,016.26 × 7,769,265.64
  4. Step 4: Simplify right side
    13,649,918.56x = 146,349,783,188,939.31
  5. Step 5: Solve for x
    x = 146,349,783,188,939.31/13,649,918.56
  6. Step 6: Final answer
    x = 10,721,659.81

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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.