Home / 424,015,015.56-635,569,018.38-193,638,885

Finding the Fourth Proportional to 424,015,015.56, 635,569,018.38 and 193,638,885

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Solution

The fourth proportional to 424,015,015.56, 635,569,018.38 and 193,638,885 is: 290,251,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,015,015.56 : 635,569,018.38 = 193,638,885 : x
  2. Step 2: Convert to fraction form
    424,015,015.56/635,569,018.38 = 193,638,885/x
  3. Step 3: Cross multiply
    424,015,015.56x = 635,569,018.38 × 193,638,885
  4. Step 4: Simplify right side
    424,015,015.56x = 123,070,876,059,647,712
  5. Step 5: Solve for x
    x = 123,070,876,059,647,712/424,015,015.56
  6. Step 6: Final answer
    x = 290,251,221.17

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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.