Home / 199,321,008.30-298,981,512.45-126,301,014.90

Finding the Fourth Proportional to 199,321,008.30, 298,981,512.45 and 126,301,014.90

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Solution

The fourth proportional to 199,321,008.30, 298,981,512.45 and 126,301,014.90 is: 189,451,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,321,008.30 : 298,981,512.45 = 126,301,014.90 : x
  2. Step 2: Convert to fraction form
    199,321,008.30/298,981,512.45 = 126,301,014.90/x
  3. Step 3: Cross multiply
    199,321,008.30x = 298,981,512.45 × 126,301,014.90
  4. Step 4: Simplify right side
    199,321,008.30x = 37,761,668,458,771,984
  5. Step 5: Solve for x
    x = 37,761,668,458,771,984/199,321,008.30
  6. Step 6: Final answer
    x = 189,451,522.35

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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.