Home / 402,524,756.20-603,787,134.30-305,778,874.60

Finding the Fourth Proportional to 402,524,756.20, 603,787,134.30 and 305,778,874.60

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Solution

The fourth proportional to 402,524,756.20, 603,787,134.30 and 305,778,874.60 is: 458,668,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,524,756.20 : 603,787,134.30 = 305,778,874.60 : x
  2. Step 2: Convert to fraction form
    402,524,756.20/603,787,134.30 = 305,778,874.60/x
  3. Step 3: Cross multiply
    402,524,756.20x = 603,787,134.30 × 305,778,874.60
  4. Step 4: Simplify right side
    402,524,756.20x = 184,625,350,424,213,056
  5. Step 5: Solve for x
    x = 184,625,350,424,213,056/402,524,756.20
  6. Step 6: Final answer
    x = 458,668,311.90

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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.