Home / 397,614,517,572.51-596,505,540,317.67-128,982,522,187.44

Finding the Fourth Proportional to 397,614,517,572.51, 596,505,540,317.67 and 128,982,522,187.44

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Solution

The fourth proportional to 397,614,517,572.51, 596,505,540,317.67 and 128,982,522,187.44 is: 193,500,955,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,614,517,572.51 : 596,505,540,317.67 = 128,982,522,187.44 : x
  2. Step 2: Convert to fraction form
    397,614,517,572.51/596,505,540,317.67 = 128,982,522,187.44/x
  3. Step 3: Cross multiply
    397,614,517,572.51x = 596,505,540,317.67 × 128,982,522,187.44
  4. Step 4: Simplify right side
    397,614,517,572.51x = 76,938,789,088,954,767,376,384
  5. Step 5: Solve for x
    x = 76,938,789,088,954,767,376,384/397,614,517,572.51
  6. Step 6: Final answer
    x = 193,500,955,545.28

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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.