Home / 339,894,249.84-507,906,448.32-255,211,578.72

Finding the Fourth Proportional to 339,894,249.84, 507,906,448.32 and 255,211,578.72

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Solution

The fourth proportional to 339,894,249.84, 507,906,448.32 and 255,211,578.72 is: 381,364,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,894,249.84 : 507,906,448.32 = 255,211,578.72 : x
  2. Step 2: Convert to fraction form
    339,894,249.84/507,906,448.32 = 255,211,578.72/x
  3. Step 3: Cross multiply
    339,894,249.84x = 507,906,448.32 × 255,211,578.72
  4. Step 4: Simplify right side
    339,894,249.84x = 129,623,606,517,815,296
  5. Step 5: Solve for x
    x = 129,623,606,517,815,296/339,894,249.84
  6. Step 6: Final answer
    x = 381,364,517.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.