Home / 479,131,813.30-661,203,895.17-259,115,239.30

Finding the Fourth Proportional to 479,131,813.30, 661,203,895.17 and 259,115,239.30

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Solution

The fourth proportional to 479,131,813.30, 661,203,895.17 and 259,115,239.30 is: 357,580,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,131,813.30 : 661,203,895.17 = 259,115,239.30 : x
  2. Step 2: Convert to fraction form
    479,131,813.30/661,203,895.17 = 259,115,239.30/x
  3. Step 3: Cross multiply
    479,131,813.30x = 661,203,895.17 × 259,115,239.30
  4. Step 4: Simplify right side
    479,131,813.30x = 171,328,005,523,066,656
  5. Step 5: Solve for x
    x = 171,328,005,523,066,656/479,131,813.30
  6. Step 6: Final answer
    x = 357,580,107.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.