Home / 80,220,969.20-120,376,164.60-43,332,116.24

Finding the Fourth Proportional to 80,220,969.20, 120,376,164.60 and 43,332,116.24

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Solution

The fourth proportional to 80,220,969.20, 120,376,164.60 and 43,332,116.24 is: 65,022,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,220,969.20 : 120,376,164.60 = 43,332,116.24 : x
  2. Step 2: Convert to fraction form
    80,220,969.20/120,376,164.60 = 43,332,116.24/x
  3. Step 3: Cross multiply
    80,220,969.20x = 120,376,164.60 × 43,332,116.24
  4. Step 4: Simplify right side
    80,220,969.20x = 5,216,153,956,972,573
  5. Step 5: Solve for x
    x = 5,216,153,956,972,573/80,220,969.20
  6. Step 6: Final answer
    x = 65,022,325.32

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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.