Home / 156,149,876.58-215,487,390.69-86,536,441.86

Finding the Fourth Proportional to 156,149,876.58, 215,487,390.69 and 86,536,441.86

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Solution

The fourth proportional to 156,149,876.58, 215,487,390.69 and 86,536,441.86 is: 119,420,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,149,876.58 : 215,487,390.69 = 86,536,441.86 : x
  2. Step 2: Convert to fraction form
    156,149,876.58/215,487,390.69 = 86,536,441.86/x
  3. Step 3: Cross multiply
    156,149,876.58x = 215,487,390.69 × 86,536,441.86
  4. Step 4: Simplify right side
    156,149,876.58x = 18,647,512,056,008,288
  5. Step 5: Solve for x
    x = 18,647,512,056,008,288/156,149,876.58
  6. Step 6: Final answer
    x = 119,420,600.67

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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.