Home / 861,941,557.64-1,292,912,353.54-206,892,583.82

Finding the Fourth Proportional to 861,941,557.64, 1,292,912,353.54 and 206,892,583.82

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Solution

The fourth proportional to 861,941,557.64, 1,292,912,353.54 and 206,892,583.82 is: 310,338,879.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,941,557.64 : 1,292,912,353.54 = 206,892,583.82 : x
  2. Step 2: Convert to fraction form
    861,941,557.64/1,292,912,353.54 = 206,892,583.82/x
  3. Step 3: Cross multiply
    861,941,557.64x = 1,292,912,353.54 × 206,892,583.82
  4. Step 4: Simplify right side
    861,941,557.64x = 267,493,977,476,687,904
  5. Step 5: Solve for x
    x = 267,493,977,476,687,904/861,941,557.64
  6. Step 6: Final answer
    x = 310,338,879.83

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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.