Home / 521,469,631.15-782,204,727.61-193,902,581.23

Finding the Fourth Proportional to 521,469,631.15, 782,204,727.61 and 193,902,581.23

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Solution

The fourth proportional to 521,469,631.15, 782,204,727.61 and 193,902,581.23 is: 290,853,976.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,469,631.15 : 782,204,727.61 = 193,902,581.23 : x
  2. Step 2: Convert to fraction form
    521,469,631.15/782,204,727.61 = 193,902,581.23/x
  3. Step 3: Cross multiply
    521,469,631.15x = 782,204,727.61 × 193,902,581.23
  4. Step 4: Simplify right side
    521,469,631.15x = 151,671,515,735,108,192
  5. Step 5: Solve for x
    x = 151,671,515,735,108,192/521,469,631.15
  6. Step 6: Final answer
    x = 290,853,976.29

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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.