Home / 13,325,419.56-18,389,120.40-7,213,833.48

Finding the Fourth Proportional to 13,325,419.56, 18,389,120.40 and 7,213,833.48

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Solution

The fourth proportional to 13,325,419.56, 18,389,120.40 and 7,213,833.48 is: 9,955,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,419.56 : 18,389,120.40 = 7,213,833.48 : x
  2. Step 2: Convert to fraction form
    13,325,419.56/18,389,120.40 = 7,213,833.48/x
  3. Step 3: Cross multiply
    13,325,419.56x = 18,389,120.40 × 7,213,833.48
  4. Step 4: Simplify right side
    13,325,419.56x = 132,656,052,409,270.98
  5. Step 5: Solve for x
    x = 132,656,052,409,270.98/13,325,419.56
  6. Step 6: Final answer
    x = 9,955,112.62

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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.