Home / 86,522,201.88-129,789,077.62-30,428,393.84

Finding the Fourth Proportional to 86,522,201.88, 129,789,077.62 and 30,428,393.84

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Solution

The fourth proportional to 86,522,201.88, 129,789,077.62 and 30,428,393.84 is: 45,644,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,522,201.88 : 129,789,077.62 = 30,428,393.84 : x
  2. Step 2: Convert to fraction form
    86,522,201.88/129,789,077.62 = 30,428,393.84/x
  3. Step 3: Cross multiply
    86,522,201.88x = 129,789,077.62 × 30,428,393.84
  4. Step 4: Simplify right side
    86,522,201.88x = 3,949,273,169,951,690
  5. Step 5: Solve for x
    x = 3,949,273,169,951,690/86,522,201.88
  6. Step 6: Final answer
    x = 45,644,621.66

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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.