Home / 159,976,920.78-220,786,104.51-90,366,784.92

Finding the Fourth Proportional to 159,976,920.78, 220,786,104.51 and 90,366,784.92

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Solution

The fourth proportional to 159,976,920.78, 220,786,104.51 and 90,366,784.92 is: 124,716,304.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,976,920.78 : 220,786,104.51 = 90,366,784.92 : x
  2. Step 2: Convert to fraction form
    159,976,920.78/220,786,104.51 = 90,366,784.92/x
  3. Step 3: Cross multiply
    159,976,920.78x = 220,786,104.51 × 90,366,784.92
  4. Step 4: Simplify right side
    159,976,920.78x = 19,951,730,419,579,812
  5. Step 5: Solve for x
    x = 19,951,730,419,579,812/159,976,920.78
  6. Step 6: Final answer
    x = 124,716,304.84

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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.