Home / 1,320,145,420,721-1,980,215,659,556.50-413,652,625,169.76

Finding the Fourth Proportional to 1,320,145,420,721, 1,980,215,659,556.50 and 413,652,625,169.76

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Solution

The fourth proportional to 1,320,145,420,721, 1,980,215,659,556.50 and 413,652,625,169.76 is: 620,478,163,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,145,420,721 : 1,980,215,659,556.50 = 413,652,625,169.76 : x
  2. Step 2: Convert to fraction form
    1,320,145,420,721/1,980,215,659,556.50 = 413,652,625,169.76/x
  3. Step 3: Cross multiply
    1,320,145,420,721x = 1,980,215,659,556.50 × 413,652,625,169.76
  4. Step 4: Simplify right side
    1,320,145,420,721x = 819,121,405,977,814,028,517,376
  5. Step 5: Solve for x
    x = 819,121,405,977,814,028,517,376/1,320,145,420,721
  6. Step 6: Final answer
    x = 620,478,163,330.26

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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.