Home / 1,200,510,147.90-1,800,765,221.85-996,436,803.90

Finding the Fourth Proportional to 1,200,510,147.90, 1,800,765,221.85 and 996,436,803.90

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Solution

The fourth proportional to 1,200,510,147.90, 1,800,765,221.85 and 996,436,803.90 is: 1,494,655,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,510,147.90 : 1,800,765,221.85 = 996,436,803.90 : x
  2. Step 2: Convert to fraction form
    1,200,510,147.90/1,800,765,221.85 = 996,436,803.90/x
  3. Step 3: Cross multiply
    1,200,510,147.90x = 1,800,765,221.85 × 996,436,803.90
  4. Step 4: Simplify right side
    1,200,510,147.90x = 1,794,348,742,234,488,320
  5. Step 5: Solve for x
    x = 1,794,348,742,234,488,320/1,200,510,147.90
  6. Step 6: Final answer
    x = 1,494,655,205.85

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Double scale
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1.5x scale

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.