Home / 158,207,204.23-218,325,910.31-87,647,399.53

Finding the Fourth Proportional to 158,207,204.23, 218,325,910.31 and 87,647,399.53

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Solution

The fourth proportional to 158,207,204.23, 218,325,910.31 and 87,647,399.53 is: 120,953,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,207,204.23 : 218,325,910.31 = 87,647,399.53 : x
  2. Step 2: Convert to fraction form
    158,207,204.23/218,325,910.31 = 87,647,399.53/x
  3. Step 3: Cross multiply
    158,207,204.23x = 218,325,910.31 × 87,647,399.53
  4. Step 4: Simplify right side
    158,207,204.23x = 19,135,698,288,037,020
  5. Step 5: Solve for x
    x = 19,135,698,288,037,020/158,207,204.23
  6. Step 6: Final answer
    x = 120,953,393.88

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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.