Home / 505,694,364.56-758,541,842.09-142,188,720.56

Finding the Fourth Proportional to 505,694,364.56, 758,541,842.09 and 142,188,720.56

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Solution

The fourth proportional to 505,694,364.56, 758,541,842.09 and 142,188,720.56 is: 213,283,163.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,694,364.56 : 758,541,842.09 = 142,188,720.56 : x
  2. Step 2: Convert to fraction form
    505,694,364.56/758,541,842.09 = 142,188,720.56/x
  3. Step 3: Cross multiply
    505,694,364.56x = 758,541,842.09 × 142,188,720.56
  4. Step 4: Simplify right side
    505,694,364.56x = 107,856,094,019,721,280
  5. Step 5: Solve for x
    x = 107,856,094,019,721,280/505,694,364.56
  6. Step 6: Final answer
    x = 213,283,163.86

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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.