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Finding the Fourth Proportional to 377,969,820.20, 566,954,730.30 and 255,525,813.80

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Solution

The fourth proportional to 377,969,820.20, 566,954,730.30 and 255,525,813.80 is: 383,288,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,969,820.20 : 566,954,730.30 = 255,525,813.80 : x
  2. Step 2: Convert to fraction form
    377,969,820.20/566,954,730.30 = 255,525,813.80/x
  3. Step 3: Cross multiply
    377,969,820.20x = 566,954,730.30 × 255,525,813.80
  4. Step 4: Simplify right side
    377,969,820.20x = 144,871,568,847,667,008
  5. Step 5: Solve for x
    x = 144,871,568,847,667,008/377,969,820.20
  6. Step 6: Final answer
    x = 383,288,720.70

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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.