Home / 43,760,147.20-65,640,220.80-21,085,331.20

Finding the Fourth Proportional to 43,760,147.20, 65,640,220.80 and 21,085,331.20

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Solution

The fourth proportional to 43,760,147.20, 65,640,220.80 and 21,085,331.20 is: 31,627,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,760,147.20 : 65,640,220.80 = 21,085,331.20 : x
  2. Step 2: Convert to fraction form
    43,760,147.20/65,640,220.80 = 21,085,331.20/x
  3. Step 3: Cross multiply
    43,760,147.20x = 65,640,220.80 × 21,085,331.20
  4. Step 4: Simplify right side
    43,760,147.20x = 1,384,045,795,609,128.75
  5. Step 5: Solve for x
    x = 1,384,045,795,609,128.75/43,760,147.20
  6. Step 6: Final answer
    x = 31,627,996.80

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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.