Home / 129,405,145,825.20-194,129,217,822.60-50,890,488,135.60

Finding the Fourth Proportional to 129,405,145,825.20, 194,129,217,822.60 and 50,890,488,135.60

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Solution

The fourth proportional to 129,405,145,825.20, 194,129,217,822.60 and 50,890,488,135.60 is: 76,344,187,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,405,145,825.20 : 194,129,217,822.60 = 50,890,488,135.60 : x
  2. Step 2: Convert to fraction form
    129,405,145,825.20/194,129,217,822.60 = 50,890,488,135.60/x
  3. Step 3: Cross multiply
    129,405,145,825.20x = 194,129,217,822.60 × 50,890,488,135.60
  4. Step 4: Simplify right side
    129,405,145,825.20x = 9,879,330,656,374,333,898,752
  5. Step 5: Solve for x
    x = 9,879,330,656,374,333,898,752/129,405,145,825.20
  6. Step 6: Final answer
    x = 76,344,187,036.58

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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.