Home / 616,738,350.78-851,289,477.03-396,721,796.22

Finding the Fourth Proportional to 616,738,350.78, 851,289,477.03 and 396,721,796.22

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Solution

The fourth proportional to 616,738,350.78, 851,289,477.03 and 396,721,796.22 is: 547,598,653.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,738,350.78 : 851,289,477.03 = 396,721,796.22 : x
  2. Step 2: Convert to fraction form
    616,738,350.78/851,289,477.03 = 396,721,796.22/x
  3. Step 3: Cross multiply
    616,738,350.78x = 851,289,477.03 × 396,721,796.22
  4. Step 4: Simplify right side
    616,738,350.78x = 337,725,090,430,526,016
  5. Step 5: Solve for x
    x = 337,725,090,430,526,016/616,738,350.78
  6. Step 6: Final answer
    x = 547,598,653.47

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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.