Home / 166,218,361.21-229,381,387.86-90,865,016.58

Finding the Fourth Proportional to 166,218,361.21, 229,381,387.86 and 90,865,016.58

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Solution

The fourth proportional to 166,218,361.21, 229,381,387.86 and 90,865,016.58 is: 125,393,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,218,361.21 : 229,381,387.86 = 90,865,016.58 : x
  2. Step 2: Convert to fraction form
    166,218,361.21/229,381,387.86 = 90,865,016.58/x
  3. Step 3: Cross multiply
    166,218,361.21x = 229,381,387.86 × 90,865,016.58
  4. Step 4: Simplify right side
    166,218,361.21x = 20,842,743,611,042,312
  5. Step 5: Solve for x
    x = 20,842,743,611,042,312/166,218,361.21
  6. Step 6: Final answer
    x = 125,393,749.88

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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.