Home / 215,923,162,059.97-297,830,486,081.47-138,858,431,568.71

Finding the Fourth Proportional to 215,923,162,059.97, 297,830,486,081.47 and 138,858,431,568.71

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Solution

The fourth proportional to 215,923,162,059.97, 297,830,486,081.47 and 138,858,431,568.71 is: 191,532,366,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,923,162,059.97 : 297,830,486,081.47 = 138,858,431,568.71 : x
  2. Step 2: Convert to fraction form
    215,923,162,059.97/297,830,486,081.47 = 138,858,431,568.71/x
  3. Step 3: Cross multiply
    215,923,162,059.97x = 297,830,486,081.47 × 138,858,431,568.71
  4. Step 4: Simplify right side
    215,923,162,059.97x = 41,356,274,170,619,435,679,744
  5. Step 5: Solve for x
    x = 41,356,274,170,619,435,679,744/215,923,162,059.97
  6. Step 6: Final answer
    x = 191,532,366,310.63

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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.