Home / 313,747,811.38-470,679,166.83-129,414,728.50

Finding the Fourth Proportional to 313,747,811.38, 470,679,166.83 and 129,414,728.50

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Solution

The fourth proportional to 313,747,811.38, 470,679,166.83 and 129,414,728.50 is: 194,145,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,747,811.38 : 470,679,166.83 = 129,414,728.50 : x
  2. Step 2: Convert to fraction form
    313,747,811.38/470,679,166.83 = 129,414,728.50/x
  3. Step 3: Cross multiply
    313,747,811.38x = 470,679,166.83 × 129,414,728.50
  4. Step 4: Simplify right side
    313,747,811.38x = 60,912,816,585,910,656
  5. Step 5: Solve for x
    x = 60,912,816,585,910,656/313,747,811.38
  6. Step 6: Final answer
    x = 194,145,789.63

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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.