Home / 263,279,808,393.30-394,919,712,589.95-258,055,530,786.90

Finding the Fourth Proportional to 263,279,808,393.30, 394,919,712,589.95 and 258,055,530,786.90

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Solution

The fourth proportional to 263,279,808,393.30, 394,919,712,589.95 and 258,055,530,786.90 is: 387,083,296,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,279,808,393.30 : 394,919,712,589.95 = 258,055,530,786.90 : x
  2. Step 2: Convert to fraction form
    263,279,808,393.30/394,919,712,589.95 = 258,055,530,786.90/x
  3. Step 3: Cross multiply
    263,279,808,393.30x = 394,919,712,589.95 × 258,055,530,786.90
  4. Step 4: Simplify right side
    263,279,808,393.30x = 101,911,216,050,609,537,941,504
  5. Step 5: Solve for x
    x = 101,911,216,050,609,537,941,504/263,279,808,393.30
  6. Step 6: Final answer
    x = 387,083,296,180.35

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Double scale
Find fourth proportional to 263,279,808,394.30, 394,919,712,591.45 and 258,055,530,787.90
Similar ratio
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1.5x scale

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.