Home / 290,379,625,445.85-400,725,128,932.92-158,394,851,167.71

Finding the Fourth Proportional to 290,379,625,445.85, 400,725,128,932.92 and 158,394,851,167.71

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Solution

The fourth proportional to 290,379,625,445.85, 400,725,128,932.92 and 158,394,851,167.71 is: 218,585,574,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,379,625,445.85 : 400,725,128,932.92 = 158,394,851,167.71 : x
  2. Step 2: Convert to fraction form
    290,379,625,445.85/400,725,128,932.92 = 158,394,851,167.71/x
  3. Step 3: Cross multiply
    290,379,625,445.85x = 400,725,128,932.92 × 158,394,851,167.71
  4. Step 4: Simplify right side
    290,379,625,445.85x = 63,472,797,156,491,256,659,968
  5. Step 5: Solve for x
    x = 63,472,797,156,491,256,659,968/290,379,625,445.85
  6. Step 6: Final answer
    x = 218,585,574,173.93

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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.