Home / 81,607,010.60-122,410,515.90-21,022,736.60

Finding the Fourth Proportional to 81,607,010.60, 122,410,515.90 and 21,022,736.60

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Solution

The fourth proportional to 81,607,010.60, 122,410,515.90 and 21,022,736.60 is: 31,534,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,607,010.60 : 122,410,515.90 = 21,022,736.60 : x
  2. Step 2: Convert to fraction form
    81,607,010.60/122,410,515.90 = 21,022,736.60/x
  3. Step 3: Cross multiply
    81,607,010.60x = 122,410,515.90 × 21,022,736.60
  4. Step 4: Simplify right side
    81,607,010.60x = 2,573,404,032,835,812
  5. Step 5: Solve for x
    x = 2,573,404,032,835,812/81,607,010.60
  6. Step 6: Final answer
    x = 31,534,104.90

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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.