Home / 31,650,993.72-47,422,195.74-21,256,728.12

Finding the Fourth Proportional to 31,650,993.72, 47,422,195.74 and 21,256,728.12

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Solution

The fourth proportional to 31,650,993.72, 47,422,195.74 and 21,256,728.12 is: 31,848,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650,993.72 : 47,422,195.74 = 21,256,728.12 : x
  2. Step 2: Convert to fraction form
    31,650,993.72/47,422,195.74 = 21,256,728.12/x
  3. Step 3: Cross multiply
    31,650,993.72x = 47,422,195.74 × 21,256,728.12
  4. Step 4: Simplify right side
    31,650,993.72x = 1,008,040,721,698,602.25
  5. Step 5: Solve for x
    x = 1,008,040,721,698,602.25/31,650,993.72
  6. Step 6: Final answer
    x = 31,848,627.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.