Home / 512,245,115.10-768,367,672.65-148,776,212.70

Finding the Fourth Proportional to 512,245,115.10, 768,367,672.65 and 148,776,212.70

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Solution

The fourth proportional to 512,245,115.10, 768,367,672.65 and 148,776,212.70 is: 223,164,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,245,115.10 : 768,367,672.65 = 148,776,212.70 : x
  2. Step 2: Convert to fraction form
    512,245,115.10/768,367,672.65 = 148,776,212.70/x
  3. Step 3: Cross multiply
    512,245,115.10x = 768,367,672.65 × 148,776,212.70
  4. Step 4: Simplify right side
    512,245,115.10x = 114,314,832,297,980,352
  5. Step 5: Solve for x
    x = 114,314,832,297,980,352/512,245,115.10
  6. Step 6: Final answer
    x = 223,164,319.05

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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.