Home / 81,789,662.90-122,784,027.15-41,379,346.10

Finding the Fourth Proportional to 81,789,662.90, 122,784,027.15 and 41,379,346.10

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Solution

The fourth proportional to 81,789,662.90, 122,784,027.15 and 41,379,346.10 is: 62,119,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,789,662.90 : 122,784,027.15 = 41,379,346.10 : x
  2. Step 2: Convert to fraction form
    81,789,662.90/122,784,027.15 = 41,379,346.10/x
  3. Step 3: Cross multiply
    81,789,662.90x = 122,784,027.15 × 41,379,346.10
  4. Step 4: Simplify right side
    81,789,662.90x = 5,080,722,754,991,647
  5. Step 5: Solve for x
    x = 5,080,722,754,991,647/81,789,662.90
  6. Step 6: Final answer
    x = 62,119,375.17

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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.