Home / 512,542,372.80-768,738,909.60-148,998,820.80

Finding the Fourth Proportional to 512,542,372.80, 768,738,909.60 and 148,998,820.80

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Solution

The fourth proportional to 512,542,372.80, 768,738,909.60 and 148,998,820.80 is: 223,476,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,542,372.80 : 768,738,909.60 = 148,998,820.80 : x
  2. Step 2: Convert to fraction form
    512,542,372.80/768,738,909.60 = 148,998,820.80/x
  3. Step 3: Cross multiply
    512,542,372.80x = 768,738,909.60 × 148,998,820.80
  4. Step 4: Simplify right side
    512,542,372.80x = 114,541,191,033,477,808
  5. Step 5: Solve for x
    x = 114,541,191,033,477,808/512,542,372.80
  6. Step 6: Final answer
    x = 223,476,530.16

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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.