Home / 137,180,711.20-189,309,650.25-81,437,310.94

Finding the Fourth Proportional to 137,180,711.20, 189,309,650.25 and 81,437,310.94

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Solution

The fourth proportional to 137,180,711.20, 189,309,650.25 and 81,437,310.94 is: 112,383,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,180,711.20 : 189,309,650.25 = 81,437,310.94 : x
  2. Step 2: Convert to fraction form
    137,180,711.20/189,309,650.25 = 81,437,310.94/x
  3. Step 3: Cross multiply
    137,180,711.20x = 189,309,650.25 × 81,437,310.94
  4. Step 4: Simplify right side
    137,180,711.20x = 15,416,868,851,184,014
  5. Step 5: Solve for x
    x = 15,416,868,851,184,014/137,180,711.20
  6. Step 6: Final answer
    x = 112,383,648.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.