Home / 689,730,967.26-1,035,053,393.67-379,055,540.88

Finding the Fourth Proportional to 689,730,967.26, 1,035,053,393.67 and 379,055,540.88

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Solution

The fourth proportional to 689,730,967.26, 1,035,053,393.67 and 379,055,540.88 is: 568,834,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,730,967.26 : 1,035,053,393.67 = 379,055,540.88 : x
  2. Step 2: Convert to fraction form
    689,730,967.26/1,035,053,393.67 = 379,055,540.88/x
  3. Step 3: Cross multiply
    689,730,967.26x = 1,035,053,393.67 × 379,055,540.88
  4. Step 4: Simplify right side
    689,730,967.26x = 392,342,723,977,261,376
  5. Step 5: Solve for x
    x = 392,342,723,977,261,376/689,730,967.26
  6. Step 6: Final answer
    x = 568,834,433.43

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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.