Home / 203,472,138.60-305,226,870.30-67,157,821.80

Finding the Fourth Proportional to 203,472,138.60, 305,226,870.30 and 67,157,821.80

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Solution

The fourth proportional to 203,472,138.60, 305,226,870.30 and 67,157,821.80 is: 100,742,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472,138.60 : 305,226,870.30 = 67,157,821.80 : x
  2. Step 2: Convert to fraction form
    203,472,138.60/305,226,870.30 = 67,157,821.80/x
  3. Step 3: Cross multiply
    203,472,138.60x = 305,226,870.30 × 67,157,821.80
  4. Step 4: Simplify right side
    203,472,138.60x = 20,498,371,764,179,112
  5. Step 5: Solve for x
    x = 20,498,371,764,179,112/203,472,138.60
  6. Step 6: Final answer
    x = 100,742,892.39

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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.