Home / 263,686,476-395,491,211.60-76,890,222.78

Finding the Fourth Proportional to 263,686,476, 395,491,211.60 and 76,890,222.78

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Solution

The fourth proportional to 263,686,476, 395,491,211.60 and 76,890,222.78 is: 115,324,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,686,476 : 395,491,211.60 = 76,890,222.78 : x
  2. Step 2: Convert to fraction form
    263,686,476/395,491,211.60 = 76,890,222.78/x
  3. Step 3: Cross multiply
    263,686,476x = 395,491,211.60 × 76,890,222.78
  4. Step 4: Simplify right side
    263,686,476x = 30,409,407,367,456,124
  5. Step 5: Solve for x
    x = 30,409,407,367,456,124/263,686,476
  6. Step 6: Final answer
    x = 115,324,106.98

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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.