Home / 120,676,286.88-166,538,759.76-71,118,752.16

Finding the Fourth Proportional to 120,676,286.88, 166,538,759.76 and 71,118,752.16

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Solution

The fourth proportional to 120,676,286.88, 166,538,759.76 and 71,118,752.16 is: 98,147,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,676,286.88 : 166,538,759.76 = 71,118,752.16 : x
  2. Step 2: Convert to fraction form
    120,676,286.88/166,538,759.76 = 71,118,752.16/x
  3. Step 3: Cross multiply
    120,676,286.88x = 166,538,759.76 × 71,118,752.16
  4. Step 4: Simplify right side
    120,676,286.88x = 11,844,028,780,405,220
  5. Step 5: Solve for x
    x = 11,844,028,780,405,220/120,676,286.88
  6. Step 6: Final answer
    x = 98,147,109.81

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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.