Home / 447,279,608.94-670,894,179.06-198,213,130.92

Finding the Fourth Proportional to 447,279,608.94, 670,894,179.06 and 198,213,130.92

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Solution

The fourth proportional to 447,279,608.94, 670,894,179.06 and 198,213,130.92 is: 297,308,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,279,608.94 : 670,894,179.06 = 198,213,130.92 : x
  2. Step 2: Convert to fraction form
    447,279,608.94/670,894,179.06 = 198,213,130.92/x
  3. Step 3: Cross multiply
    447,279,608.94x = 670,894,179.06 × 198,213,130.92
  4. Step 4: Simplify right side
    447,279,608.94x = 132,980,035,747,485,680
  5. Step 5: Solve for x
    x = 132,980,035,747,485,680/447,279,608.94
  6. Step 6: Final answer
    x = 297,308,513.71

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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.