Home / 679,474,229.01-937,659,734.15-393,377,818.38

Finding the Fourth Proportional to 679,474,229.01, 937,659,734.15 and 393,377,818.38

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Solution

The fourth proportional to 679,474,229.01, 937,659,734.15 and 393,377,818.38 is: 542,852,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,474,229.01 : 937,659,734.15 = 393,377,818.38 : x
  2. Step 2: Convert to fraction form
    679,474,229.01/937,659,734.15 = 393,377,818.38/x
  3. Step 3: Cross multiply
    679,474,229.01x = 937,659,734.15 × 393,377,818.38
  4. Step 4: Simplify right side
    679,474,229.01x = 368,854,540,598,009,472
  5. Step 5: Solve for x
    x = 368,854,540,598,009,472/679,474,229.01
  6. Step 6: Final answer
    x = 542,852,877.79

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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.