Home / 299,315,739.40-449,215,425.90-126,913,610.86

Finding the Fourth Proportional to 299,315,739.40, 449,215,425.90 and 126,913,610.86

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Solution

The fourth proportional to 299,315,739.40, 449,215,425.90 and 126,913,610.86 is: 190,472,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,315,739.40 : 449,215,425.90 = 126,913,610.86 : x
  2. Step 2: Convert to fraction form
    299,315,739.40/449,215,425.90 = 126,913,610.86/x
  3. Step 3: Cross multiply
    299,315,739.40x = 449,215,425.90 × 126,913,610.86
  4. Step 4: Simplify right side
    299,315,739.40x = 57,011,551,754,981,760
  5. Step 5: Solve for x
    x = 57,011,551,754,981,760/299,315,739.40
  6. Step 6: Final answer
    x = 190,472,949.63

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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.