Home / 156,930,415.20-235,289,334.60-80,190,334.80

Finding the Fourth Proportional to 156,930,415.20, 235,289,334.60 and 80,190,334.80

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Solution

The fourth proportional to 156,930,415.20, 235,289,334.60 and 80,190,334.80 is: 120,231,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930,415.20 : 235,289,334.60 = 80,190,334.80 : x
  2. Step 2: Convert to fraction form
    156,930,415.20/235,289,334.60 = 80,190,334.80/x
  3. Step 3: Cross multiply
    156,930,415.20x = 235,289,334.60 × 80,190,334.80
  4. Step 4: Simplify right side
    156,930,415.20x = 18,867,930,516,443,224
  5. Step 5: Solve for x
    x = 18,867,930,516,443,224/156,930,415.20
  6. Step 6: Final answer
    x = 120,231,189.68

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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.