Home / 689,993,456.24-952,274,468.04-392,707,982

Finding the Fourth Proportional to 689,993,456.24, 952,274,468.04 and 392,707,982

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Solution

The fourth proportional to 689,993,456.24, 952,274,468.04 and 392,707,982 is: 541,984,538.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,993,456.24 : 952,274,468.04 = 392,707,982 : x
  2. Step 2: Convert to fraction form
    689,993,456.24/952,274,468.04 = 392,707,982/x
  3. Step 3: Cross multiply
    689,993,456.24x = 952,274,468.04 × 392,707,982
  4. Step 4: Simplify right side
    689,993,456.24x = 373,965,784,654,111,872
  5. Step 5: Solve for x
    x = 373,965,784,654,111,872/689,993,456.24
  6. Step 6: Final answer
    x = 541,984,538.07

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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.