Home / 31,215,359.44-43,074,277.26-18,653,921.28

Finding the Fourth Proportional to 31,215,359.44, 43,074,277.26 and 18,653,921.28

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Solution

The fourth proportional to 31,215,359.44, 43,074,277.26 and 18,653,921.28 is: 25,740,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215,359.44 : 43,074,277.26 = 18,653,921.28 : x
  2. Step 2: Convert to fraction form
    31,215,359.44/43,074,277.26 = 18,653,921.28/x
  3. Step 3: Cross multiply
    31,215,359.44x = 43,074,277.26 × 18,653,921.28
  4. Step 4: Simplify right side
    31,215,359.44x = 803,504,177,130,982
  5. Step 5: Solve for x
    x = 803,504,177,130,982/31,215,359.44
  6. Step 6: Final answer
    x = 25,740,667.15

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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.