Home / 412,979,861.70-619,469,792.55-310,943,189.70

Finding the Fourth Proportional to 412,979,861.70, 619,469,792.55 and 310,943,189.70

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Solution

The fourth proportional to 412,979,861.70, 619,469,792.55 and 310,943,189.70 is: 466,414,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,979,861.70 : 619,469,792.55 = 310,943,189.70 : x
  2. Step 2: Convert to fraction form
    412,979,861.70/619,469,792.55 = 310,943,189.70/x
  3. Step 3: Cross multiply
    412,979,861.70x = 619,469,792.55 × 310,943,189.70
  4. Step 4: Simplify right side
    412,979,861.70x = 192,619,913,218,294,272
  5. Step 5: Solve for x
    x = 192,619,913,218,294,272/412,979,861.70
  6. Step 6: Final answer
    x = 466,414,784.55

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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.