Home / 397,590,601,261.53-596,469,763,283.90-128,958,718,660.05

Finding the Fourth Proportional to 397,590,601,261.53, 596,469,763,283.90 and 128,958,718,660.05

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Solution

The fourth proportional to 397,590,601,261.53, 596,469,763,283.90 and 128,958,718,660.05 is: 193,465,278,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,590,601,261.53 : 596,469,763,283.90 = 128,958,718,660.05 : x
  2. Step 2: Convert to fraction form
    397,590,601,261.53/596,469,763,283.90 = 128,958,718,660.05/x
  3. Step 3: Cross multiply
    397,590,601,261.53x = 596,469,763,283.90 × 128,958,718,660.05
  4. Step 4: Simplify right side
    397,590,601,261.53x = 76,919,976,392,555,090,673,664
  5. Step 5: Solve for x
    x = 76,919,976,392,555,090,673,664/397,590,601,261.53
  6. Step 6: Final answer
    x = 193,465,278,476.13

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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.