Home / 168,076,624.88-231,945,739.80-90,814,288.88

Finding the Fourth Proportional to 168,076,624.88, 231,945,739.80 and 90,814,288.88

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Solution

The fourth proportional to 168,076,624.88, 231,945,739.80 and 90,814,288.88 is: 125,323,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,076,624.88 : 231,945,739.80 = 90,814,288.88 : x
  2. Step 2: Convert to fraction form
    168,076,624.88/231,945,739.80 = 90,814,288.88/x
  3. Step 3: Cross multiply
    168,076,624.88x = 231,945,739.80 × 90,814,288.88
  4. Step 4: Simplify right side
    168,076,624.88x = 21,063,987,418,682,512
  5. Step 5: Solve for x
    x = 21,063,987,418,682,512/168,076,624.88
  6. Step 6: Final answer
    x = 125,323,717.29

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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.