Home / 397,590,601,262.53-596,469,763,285.40-128,958,718,661.05

Finding the Fourth Proportional to 397,590,601,262.53, 596,469,763,285.40 and 128,958,718,661.05

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Solution

The fourth proportional to 397,590,601,262.53, 596,469,763,285.40 and 128,958,718,661.05 is: 193,465,278,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,590,601,262.53 : 596,469,763,285.40 = 128,958,718,661.05 : x
  2. Step 2: Convert to fraction form
    397,590,601,262.53/596,469,763,285.40 = 128,958,718,661.05/x
  3. Step 3: Cross multiply
    397,590,601,262.53x = 596,469,763,285.40 × 128,958,718,661.05
  4. Step 4: Simplify right side
    397,590,601,262.53x = 76,919,976,393,344,995,557,376
  5. Step 5: Solve for x
    x = 76,919,976,393,344,995,557,376/397,590,601,262.53
  6. Step 6: Final answer
    x = 193,465,278,477.63

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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.