Home / 616,738,351.78-851,289,478.41-396,721,797.22

Finding the Fourth Proportional to 616,738,351.78, 851,289,478.41 and 396,721,797.22

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Solution

The fourth proportional to 616,738,351.78, 851,289,478.41 and 396,721,797.22 is: 547,598,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,738,351.78 : 851,289,478.41 = 396,721,797.22 : x
  2. Step 2: Convert to fraction form
    616,738,351.78/851,289,478.41 = 396,721,797.22/x
  3. Step 3: Cross multiply
    616,738,351.78x = 851,289,478.41 × 396,721,797.22
  4. Step 4: Simplify right side
    616,738,351.78x = 337,725,091,829,291,584
  5. Step 5: Solve for x
    x = 337,725,091,829,291,584/616,738,351.78
  6. Step 6: Final answer
    x = 547,598,654.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.