Home / 447,279,609.94-670,894,180.56-198,213,131.92

Finding the Fourth Proportional to 447,279,609.94, 670,894,180.56 and 198,213,131.92

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Solution

The fourth proportional to 447,279,609.94, 670,894,180.56 and 198,213,131.92 is: 297,308,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,279,609.94 : 670,894,180.56 = 198,213,131.92 : x
  2. Step 2: Convert to fraction form
    447,279,609.94/670,894,180.56 = 198,213,131.92/x
  3. Step 3: Cross multiply
    447,279,609.94x = 670,894,180.56 × 198,213,131.92
  4. Step 4: Simplify right side
    447,279,609.94x = 132,980,036,715,699,552
  5. Step 5: Solve for x
    x = 132,980,036,715,699,552/447,279,609.94
  6. Step 6: Final answer
    x = 297,308,515.21

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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.