Home / 157,454,261.29-217,286,974.11-87,839,642.24

Finding the Fourth Proportional to 157,454,261.29, 217,286,974.11 and 87,839,642.24

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Solution

The fourth proportional to 157,454,261.29, 217,286,974.11 and 87,839,642.24 is: 121,218,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,454,261.29 : 217,286,974.11 = 87,839,642.24 : x
  2. Step 2: Convert to fraction form
    157,454,261.29/217,286,974.11 = 87,839,642.24/x
  3. Step 3: Cross multiply
    157,454,261.29x = 217,286,974.11 × 87,839,642.24
  4. Step 4: Simplify right side
    157,454,261.29x = 19,086,410,070,267,744
  5. Step 5: Solve for x
    x = 19,086,410,070,267,744/157,454,261.29
  6. Step 6: Final answer
    x = 121,218,758.48

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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.