Home / 391,024,772.82-587,049,769.62-262,208,788.56

Finding the Fourth Proportional to 391,024,772.82, 587,049,769.62 and 262,208,788.56

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Solution

The fourth proportional to 391,024,772.82, 587,049,769.62 and 262,208,788.56 is: 393,656,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,024,772.82 : 587,049,769.62 = 262,208,788.56 : x
  2. Step 2: Convert to fraction form
    391,024,772.82/587,049,769.62 = 262,208,788.56/x
  3. Step 3: Cross multiply
    391,024,772.82x = 587,049,769.62 × 262,208,788.56
  4. Step 4: Simplify right side
    391,024,772.82x = 153,929,608,916,487,296
  5. Step 5: Solve for x
    x = 153,929,608,916,487,296/391,024,772.82
  6. Step 6: Final answer
    x = 393,656,923.08

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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.