Home / 613,781,198.06-921,253,856.67-379,904,454.18

Finding the Fourth Proportional to 613,781,198.06, 921,253,856.67 and 379,904,454.18

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Solution

The fourth proportional to 613,781,198.06, 921,253,856.67 and 379,904,454.18 is: 570,216,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,781,198.06 : 921,253,856.67 = 379,904,454.18 : x
  2. Step 2: Convert to fraction form
    613,781,198.06/921,253,856.67 = 379,904,454.18/x
  3. Step 3: Cross multiply
    613,781,198.06x = 921,253,856.67 × 379,904,454.18
  4. Step 4: Simplify right side
    613,781,198.06x = 349,988,443,579,436,288
  5. Step 5: Solve for x
    x = 349,988,443,579,436,288/613,781,198.06
  6. Step 6: Final answer
    x = 570,216,951.40

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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.