Home / 263,360,311.47-393,438,672.36-170,487,453.78

Finding the Fourth Proportional to 263,360,311.47, 393,438,672.36 and 170,487,453.78

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Solution

The fourth proportional to 263,360,311.47, 393,438,672.36 and 170,487,453.78 is: 254,694,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,360,311.47 : 393,438,672.36 = 170,487,453.78 : x
  2. Step 2: Convert to fraction form
    263,360,311.47/393,438,672.36 = 170,487,453.78/x
  3. Step 3: Cross multiply
    263,360,311.47x = 393,438,672.36 × 170,487,453.78
  4. Step 4: Simplify right side
    263,360,311.47x = 67,076,357,469,240,064
  5. Step 5: Solve for x
    x = 67,076,357,469,240,064/263,360,311.47
  6. Step 6: Final answer
    x = 254,694,251.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.