Home / 86,469,087.60-129,703,631.40-82,737,190.80

Finding the Fourth Proportional to 86,469,087.60, 129,703,631.40 and 82,737,190.80

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Solution

The fourth proportional to 86,469,087.60, 129,703,631.40 and 82,737,190.80 is: 124,105,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,469,087.60 : 129,703,631.40 = 82,737,190.80 : x
  2. Step 2: Convert to fraction form
    86,469,087.60/129,703,631.40 = 82,737,190.80/x
  3. Step 3: Cross multiply
    86,469,087.60x = 129,703,631.40 × 82,737,190.80
  4. Step 4: Simplify right side
    86,469,087.60x = 10,731,314,098,594,672
  5. Step 5: Solve for x
    x = 10,731,314,098,594,672/86,469,087.60
  6. Step 6: Final answer
    x = 124,105,786.20

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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.