Home / 285,629,118,296.80-394,156,286,865.12-155,418,484,236.22

Finding the Fourth Proportional to 285,629,118,296.80, 394,156,286,865.12 and 155,418,484,236.22

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Solution

The fourth proportional to 285,629,118,296.80, 394,156,286,865.12 and 155,418,484,236.22 is: 214,471,035,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,629,118,296.80 : 394,156,286,865.12 = 155,418,484,236.22 : x
  2. Step 2: Convert to fraction form
    285,629,118,296.80/394,156,286,865.12 = 155,418,484,236.22/x
  3. Step 3: Cross multiply
    285,629,118,296.80x = 394,156,286,865.12 × 155,418,484,236.22
  4. Step 4: Simplify right side
    285,629,118,296.80x = 61,259,172,656,753,663,803,392
  5. Step 5: Solve for x
    x = 61,259,172,656,753,663,803,392/285,629,118,296.80
  6. Step 6: Final answer
    x = 214,471,035,103.29

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1.5x scale

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.