Home / 618,632,829.69-927,861,876.09-198,399,594.95

Finding the Fourth Proportional to 618,632,829.69, 927,861,876.09 and 198,399,594.95

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Solution

The fourth proportional to 618,632,829.69, 927,861,876.09 and 198,399,594.95 is: 297,571,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,632,829.69 : 927,861,876.09 = 198,399,594.95 : x
  2. Step 2: Convert to fraction form
    618,632,829.69/927,861,876.09 = 198,399,594.95/x
  3. Step 3: Cross multiply
    618,632,829.69x = 927,861,876.09 × 198,399,594.95
  4. Step 4: Simplify right side
    618,632,829.69x = 184,087,420,384,643,264
  5. Step 5: Solve for x
    x = 184,087,420,384,643,264/618,632,829.69
  6. Step 6: Final answer
    x = 297,571,372.79

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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.