Home / 312,385,603.83-431,082,790.45-171,251,997.36

Finding the Fourth Proportional to 312,385,603.83, 431,082,790.45 and 171,251,997.36

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Solution

The fourth proportional to 312,385,603.83, 431,082,790.45 and 171,251,997.36 is: 236,322,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,385,603.83 : 431,082,790.45 = 171,251,997.36 : x
  2. Step 2: Convert to fraction form
    312,385,603.83/431,082,790.45 = 171,251,997.36/x
  3. Step 3: Cross multiply
    312,385,603.83x = 431,082,790.45 × 171,251,997.36
  4. Step 4: Simplify right side
    312,385,603.83x = 73,823,788,892,084,832
  5. Step 5: Solve for x
    x = 73,823,788,892,084,832/312,385,603.83
  6. Step 6: Final answer
    x = 236,322,634.55

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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.