Home / 155,286,776,310.97-214,279,419,114-90,168,474,641.54

Finding the Fourth Proportional to 155,286,776,310.97, 214,279,419,114 and 90,168,474,641.54

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Solution

The fourth proportional to 155,286,776,310.97, 214,279,419,114 and 90,168,474,641.54 is: 124,423,011,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,286,776,310.97 : 214,279,419,114 = 90,168,474,641.54 : x
  2. Step 2: Convert to fraction form
    155,286,776,310.97/214,279,419,114 = 90,168,474,641.54/x
  3. Step 3: Cross multiply
    155,286,776,310.97x = 214,279,419,114 × 90,168,474,641.54
  4. Step 4: Simplify right side
    155,286,776,310.97x = 19,321,248,368,583,560,396,800
  5. Step 5: Solve for x
    x = 19,321,248,368,583,560,396,800/155,286,776,310.97
  6. Step 6: Final answer
    x = 124,423,011,589.16

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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.