Home / 618,632,829.82-927,861,876.28-198,399,595.07

Finding the Fourth Proportional to 618,632,829.82, 927,861,876.28 and 198,399,595.07

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Solution

The fourth proportional to 618,632,829.82, 927,861,876.28 and 198,399,595.07 is: 297,571,372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,632,829.82 : 927,861,876.28 = 198,399,595.07 : x
  2. Step 2: Convert to fraction form
    618,632,829.82/927,861,876.28 = 198,399,595.07/x
  3. Step 3: Cross multiply
    618,632,829.82x = 927,861,876.28 × 198,399,595.07
  4. Step 4: Simplify right side
    618,632,829.82x = 184,087,420,533,850,432
  5. Step 5: Solve for x
    x = 184,087,420,533,850,432/618,632,829.82
  6. Step 6: Final answer
    x = 297,571,372.97

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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.