Home / 121,334,757,077.89-167,304,940,712.39-90,752,933,581.70

Finding the Fourth Proportional to 121,334,757,077.89, 167,304,940,712.39 and 90,752,933,581.70

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Solution

The fourth proportional to 121,334,757,077.89, 167,304,940,712.39 and 90,752,933,581.70 is: 125,136,560,520.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,334,757,077.89 : 167,304,940,712.39 = 90,752,933,581.70 : x
  2. Step 2: Convert to fraction form
    121,334,757,077.89/167,304,940,712.39 = 90,752,933,581.70/x
  3. Step 3: Cross multiply
    121,334,757,077.89x = 167,304,940,712.39 × 90,752,933,581.70
  4. Step 4: Simplify right side
    121,334,757,077.89x = 15,183,414,172,360,950,939,648
  5. Step 5: Solve for x
    x = 15,183,414,172,360,950,939,648/121,334,757,077.89
  6. Step 6: Final answer
    x = 125,136,560,520.86

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1.5x scale

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.