Home / 115,287,019.31-159,080,374.37-68,867,419.43

Finding the Fourth Proportional to 115,287,019.31, 159,080,374.37 and 68,867,419.43

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Solution

The fourth proportional to 115,287,019.31, 159,080,374.37 and 68,867,419.43 is: 95,027,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,287,019.31 : 159,080,374.37 = 68,867,419.43 : x
  2. Step 2: Convert to fraction form
    115,287,019.31/159,080,374.37 = 68,867,419.43/x
  3. Step 3: Cross multiply
    115,287,019.31x = 159,080,374.37 × 68,867,419.43
  4. Step 4: Simplify right side
    115,287,019.31x = 10,955,454,864,475,876
  5. Step 5: Solve for x
    x = 10,955,454,864,475,876/115,287,019.31
  6. Step 6: Final answer
    x = 95,027,652.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.