Home / 146,716,100.20-220,074,150.30-78,691,652.20

Finding the Fourth Proportional to 146,716,100.20, 220,074,150.30 and 78,691,652.20

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Solution

The fourth proportional to 146,716,100.20, 220,074,150.30 and 78,691,652.20 is: 118,037,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,716,100.20 : 220,074,150.30 = 78,691,652.20 : x
  2. Step 2: Convert to fraction form
    146,716,100.20/220,074,150.30 = 78,691,652.20/x
  3. Step 3: Cross multiply
    146,716,100.20x = 220,074,150.30 × 78,691,652.20
  4. Step 4: Simplify right side
    146,716,100.20x = 17,317,998,493,618,128
  5. Step 5: Solve for x
    x = 17,317,998,493,618,128/146,716,100.20
  6. Step 6: Final answer
    x = 118,037,478.30

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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.