Home / 69,525,085.20-104,287,109.40-21,002,845.20

Finding the Fourth Proportional to 69,525,085.20, 104,287,109.40 and 21,002,845.20

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Solution

The fourth proportional to 69,525,085.20, 104,287,109.40 and 21,002,845.20 is: 31,504,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,525,085.20 : 104,287,109.40 = 21,002,845.20 : x
  2. Step 2: Convert to fraction form
    69,525,085.20/104,287,109.40 = 21,002,845.20/x
  3. Step 3: Cross multiply
    69,525,085.20x = 104,287,109.40 × 21,002,845.20
  4. Step 4: Simplify right side
    69,525,085.20x = 2,190,326,015,083,665
  5. Step 5: Solve for x
    x = 2,190,326,015,083,665/69,525,085.20
  6. Step 6: Final answer
    x = 31,504,111.20

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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.