Home / 402,384,548.70-603,576,823.05-378,575,991.90

Finding the Fourth Proportional to 402,384,548.70, 603,576,823.05 and 378,575,991.90

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Solution

The fourth proportional to 402,384,548.70, 603,576,823.05 and 378,575,991.90 is: 567,863,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,384,548.70 : 603,576,823.05 = 378,575,991.90 : x
  2. Step 2: Convert to fraction form
    402,384,548.70/603,576,823.05 = 378,575,991.90/x
  3. Step 3: Cross multiply
    402,384,548.70x = 603,576,823.05 × 378,575,991.90
  4. Step 4: Simplify right side
    402,384,548.70x = 228,499,694,474,004,512
  5. Step 5: Solve for x
    x = 228,499,694,474,004,512/402,384,548.70
  6. Step 6: Final answer
    x = 567,863,987.85

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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.