Home / 613,781,202.56-921,253,863.48-379,904,458.72

Finding the Fourth Proportional to 613,781,202.56, 921,253,863.48 and 379,904,458.72

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Solution

The fourth proportional to 613,781,202.56, 921,253,863.48 and 379,904,458.72 is: 570,216,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,781,202.56 : 921,253,863.48 = 379,904,458.72 : x
  2. Step 2: Convert to fraction form
    613,781,202.56/921,253,863.48 = 379,904,458.72/x
  3. Step 3: Cross multiply
    613,781,202.56x = 921,253,863.48 × 379,904,458.72
  4. Step 4: Simplify right side
    613,781,202.56x = 349,988,450,349,078,208
  5. Step 5: Solve for x
    x = 349,988,450,349,078,208/613,781,202.56
  6. Step 6: Final answer
    x = 570,216,958.24

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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.