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Finding the Fourth Proportional to 515,408,759.87, 773,350,907.51 and 235,375,520.64

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Solution

The fourth proportional to 515,408,759.87, 773,350,907.51 and 235,375,520.64 is: 353,171,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,408,759.87 : 773,350,907.51 = 235,375,520.64 : x
  2. Step 2: Convert to fraction form
    515,408,759.87/773,350,907.51 = 235,375,520.64/x
  3. Step 3: Cross multiply
    515,408,759.87x = 773,350,907.51 × 235,375,520.64
  4. Step 4: Simplify right side
    515,408,759.87x = 182,027,872,495,150,560
  5. Step 5: Solve for x
    x = 182,027,872,495,150,560/515,408,759.87
  6. Step 6: Final answer
    x = 353,171,864.09

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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.