Home / 168,435,152.20-252,652,728.30-143,776,289.80

Finding the Fourth Proportional to 168,435,152.20, 252,652,728.30 and 143,776,289.80

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Solution

The fourth proportional to 168,435,152.20, 252,652,728.30 and 143,776,289.80 is: 215,664,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,435,152.20 : 252,652,728.30 = 143,776,289.80 : x
  2. Step 2: Convert to fraction form
    168,435,152.20/252,652,728.30 = 143,776,289.80/x
  3. Step 3: Cross multiply
    168,435,152.20x = 252,652,728.30 × 143,776,289.80
  4. Step 4: Simplify right side
    168,435,152.20x = 36,325,471,882,821,464
  5. Step 5: Solve for x
    x = 36,325,471,882,821,464/168,435,152.20
  6. Step 6: Final answer
    x = 215,664,434.70

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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.