Home / 409,502,837.10-613,279,222.82-261,491,935.90

Finding the Fourth Proportional to 409,502,837.10, 613,279,222.82 and 261,491,935.90

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Solution

The fourth proportional to 409,502,837.10, 613,279,222.82 and 261,491,935.90 is: 391,615,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,502,837.10 : 613,279,222.82 = 261,491,935.90 : x
  2. Step 2: Convert to fraction form
    409,502,837.10/613,279,222.82 = 261,491,935.90/x
  3. Step 3: Cross multiply
    409,502,837.10x = 613,279,222.82 × 261,491,935.90
  4. Step 4: Simplify right side
    409,502,837.10x = 160,367,571,222,449,280
  5. Step 5: Solve for x
    x = 160,367,571,222,449,280/409,502,837.10
  6. Step 6: Final answer
    x = 391,615,287.35

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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.