Home / 72,940,474.20-109,410,711.30-42,632,736.60

Finding the Fourth Proportional to 72,940,474.20, 109,410,711.30 and 42,632,736.60

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Solution

The fourth proportional to 72,940,474.20, 109,410,711.30 and 42,632,736.60 is: 63,949,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,940,474.20 : 109,410,711.30 = 42,632,736.60 : x
  2. Step 2: Convert to fraction form
    72,940,474.20/109,410,711.30 = 42,632,736.60/x
  3. Step 3: Cross multiply
    72,940,474.20x = 109,410,711.30 × 42,632,736.60
  4. Step 4: Simplify right side
    72,940,474.20x = 4,664,478,036,071,544
  5. Step 5: Solve for x
    x = 4,664,478,036,071,544/72,940,474.20
  6. Step 6: Final answer
    x = 63,949,104.90

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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.