Home / 120,372,760.94-166,165,260.70-81,267,506.02

Finding the Fourth Proportional to 120,372,760.94, 166,165,260.70 and 81,267,506.02

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Solution

The fourth proportional to 120,372,760.94, 166,165,260.70 and 81,267,506.02 is: 112,183,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372,760.94 : 166,165,260.70 = 81,267,506.02 : x
  2. Step 2: Convert to fraction form
    120,372,760.94/166,165,260.70 = 81,267,506.02/x
  3. Step 3: Cross multiply
    120,372,760.94x = 166,165,260.70 × 81,267,506.02
  4. Step 4: Simplify right side
    120,372,760.94x = 13,503,836,323,633,536
  5. Step 5: Solve for x
    x = 13,503,836,323,633,536/120,372,760.94
  6. Step 6: Final answer
    x = 112,183,489.17

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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.