Home / 689,730,969.26-1,035,053,396.68-379,055,542.88

Finding the Fourth Proportional to 689,730,969.26, 1,035,053,396.68 and 379,055,542.88

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Solution

The fourth proportional to 689,730,969.26, 1,035,053,396.68 and 379,055,542.88 is: 568,834,436.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,730,969.26 : 1,035,053,396.68 = 379,055,542.88 : x
  2. Step 2: Convert to fraction form
    689,730,969.26/1,035,053,396.68 = 379,055,542.88/x
  3. Step 3: Cross multiply
    689,730,969.26x = 1,035,053,396.68 × 379,055,542.88
  4. Step 4: Simplify right side
    689,730,969.26x = 392,342,727,188,325,376
  5. Step 5: Solve for x
    x = 392,342,727,188,325,376/689,730,969.26
  6. Step 6: Final answer
    x = 568,834,436.43

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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.