Home / 167,987,491.80-231,822,690.30-90,725,155.80

Finding the Fourth Proportional to 167,987,491.80, 231,822,690.30 and 90,725,155.80

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Solution

The fourth proportional to 167,987,491.80, 231,822,690.30 and 90,725,155.80 is: 125,200,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,987,491.80 : 231,822,690.30 = 90,725,155.80 : x
  2. Step 2: Convert to fraction form
    167,987,491.80/231,822,690.30 = 90,725,155.80/x
  3. Step 3: Cross multiply
    167,987,491.80x = 231,822,690.30 × 90,725,155.80
  4. Step 4: Simplify right side
    167,987,491.80x = 21,032,149,695,442,648
  5. Step 5: Solve for x
    x = 21,032,149,695,442,648/167,987,491.80
  6. Step 6: Final answer
    x = 125,200,688.87

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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.