Home / 281,617,758.20-388,625,142.18-156,169,634.53

Finding the Fourth Proportional to 281,617,758.20, 388,625,142.18 and 156,169,634.53

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Solution

The fourth proportional to 281,617,758.20, 388,625,142.18 and 156,169,634.53 is: 215,510,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,617,758.20 : 388,625,142.18 = 156,169,634.53 : x
  2. Step 2: Convert to fraction form
    281,617,758.20/388,625,142.18 = 156,169,634.53/x
  3. Step 3: Cross multiply
    281,617,758.20x = 388,625,142.18 × 156,169,634.53
  4. Step 4: Simplify right side
    281,617,758.20x = 60,691,446,423,419,888
  5. Step 5: Solve for x
    x = 60,691,446,423,419,888/281,617,758.20
  6. Step 6: Final answer
    x = 215,510,011.91

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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.