Home / 156,930,434.70-235,289,363.85-80,190,354.30

Finding the Fourth Proportional to 156,930,434.70, 235,289,363.85 and 80,190,354.30

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Solution

The fourth proportional to 156,930,434.70, 235,289,363.85 and 80,190,354.30 is: 120,231,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930,434.70 : 235,289,363.85 = 80,190,354.30 : x
  2. Step 2: Convert to fraction form
    156,930,434.70/235,289,363.85 = 80,190,354.30/x
  3. Step 3: Cross multiply
    156,930,434.70x = 235,289,363.85 × 80,190,354.30
  4. Step 4: Simplify right side
    156,930,434.70x = 18,867,937,450,153,112
  5. Step 5: Solve for x
    x = 18,867,937,450,153,112/156,930,434.70
  6. Step 6: Final answer
    x = 120,231,218.92

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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.