Home / 418,330,422.39-627,572,233.26-172,552,978.56

Finding the Fourth Proportional to 418,330,422.39, 627,572,233.26 and 172,552,978.56

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Solution

The fourth proportional to 418,330,422.39, 627,572,233.26 and 172,552,978.56 is: 258,861,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,330,422.39 : 627,572,233.26 = 172,552,978.56 : x
  2. Step 2: Convert to fraction form
    418,330,422.39/627,572,233.26 = 172,552,978.56/x
  3. Step 3: Cross multiply
    418,330,422.39x = 627,572,233.26 × 172,552,978.56
  4. Step 4: Simplify right side
    418,330,422.39x = 108,289,458,110,564,096
  5. Step 5: Solve for x
    x = 108,289,458,110,564,096/418,330,422.39
  6. Step 6: Final answer
    x = 258,861,063.68

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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.