Home / 155,286,776,311.97-214,279,419,115.38-90,168,474,642.54

Finding the Fourth Proportional to 155,286,776,311.97, 214,279,419,115.38 and 90,168,474,642.54

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Solution

The fourth proportional to 155,286,776,311.97, 214,279,419,115.38 and 90,168,474,642.54 is: 124,423,011,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,286,776,311.97 : 214,279,419,115.38 = 90,168,474,642.54 : x
  2. Step 2: Convert to fraction form
    155,286,776,311.97/214,279,419,115.38 = 90,168,474,642.54/x
  3. Step 3: Cross multiply
    155,286,776,311.97x = 214,279,419,115.38 × 90,168,474,642.54
  4. Step 4: Simplify right side
    155,286,776,311.97x = 19,321,248,368,923,340,963,840
  5. Step 5: Solve for x
    x = 19,321,248,368,923,340,963,840/155,286,776,311.97
  6. Step 6: Final answer
    x = 124,423,011,590.55

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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.