Home / 129,585,611.40-194,380,721.10-38,710,321.80

Finding the Fourth Proportional to 129,585,611.40, 194,380,721.10 and 38,710,321.80

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Solution

The fourth proportional to 129,585,611.40, 194,380,721.10 and 38,710,321.80 is: 58,066,170.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,585,611.40 : 194,380,721.10 = 38,710,321.80 : x
  2. Step 2: Convert to fraction form
    129,585,611.40/194,380,721.10 = 38,710,321.80/x
  3. Step 3: Cross multiply
    129,585,611.40x = 194,380,721.10 × 38,710,321.80
  4. Step 4: Simplify right side
    129,585,611.40x = 7,524,540,265,497,049
  5. Step 5: Solve for x
    x = 7,524,540,265,497,049/129,585,611.40
  6. Step 6: Final answer
    x = 58,066,170.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.