Home / 513,876,612.01-709,131,372.86-290,853,504.85

Finding the Fourth Proportional to 513,876,612.01, 709,131,372.86 and 290,853,504.85

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Solution

The fourth proportional to 513,876,612.01, 709,131,372.86 and 290,853,504.85 is: 401,367,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,876,612.01 : 709,131,372.86 = 290,853,504.85 : x
  2. Step 2: Convert to fraction form
    513,876,612.01/709,131,372.86 = 290,853,504.85/x
  3. Step 3: Cross multiply
    513,876,612.01x = 709,131,372.86 × 290,853,504.85
  4. Step 4: Simplify right side
    513,876,612.01x = 206,253,345,194,377,472
  5. Step 5: Solve for x
    x = 206,253,345,194,377,472/513,876,612.01
  6. Step 6: Final answer
    x = 401,367,449.64

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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.