Home / 426,377,459.37-639,627,111.59-131,297,504.97

Finding the Fourth Proportional to 426,377,459.37, 639,627,111.59 and 131,297,504.97

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Solution

The fourth proportional to 426,377,459.37, 639,627,111.59 and 131,297,504.97 is: 196,965,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,377,459.37 : 639,627,111.59 = 131,297,504.97 : x
  2. Step 2: Convert to fraction form
    426,377,459.37/639,627,111.59 = 131,297,504.97/x
  3. Step 3: Cross multiply
    426,377,459.37x = 639,627,111.59 × 131,297,504.97
  4. Step 4: Simplify right side
    426,377,459.37x = 83,981,443,862,278,288
  5. Step 5: Solve for x
    x = 83,981,443,862,278,288/426,377,459.37
  6. Step 6: Final answer
    x = 196,965,017.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.