Home / 21,188,917.20-31,783,375.80-5,232,565.20

Finding the Fourth Proportional to 21,188,917.20, 31,783,375.80 and 5,232,565.20

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Solution

The fourth proportional to 21,188,917.20, 31,783,375.80 and 5,232,565.20 is: 7,848,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188,917.20 : 31,783,375.80 = 5,232,565.20 : x
  2. Step 2: Convert to fraction form
    21,188,917.20/31,783,375.80 = 5,232,565.20/x
  3. Step 3: Cross multiply
    21,188,917.20x = 31,783,375.80 × 5,232,565.20
  4. Step 4: Simplify right side
    21,188,917.20x = 166,308,586,149,602.16
  5. Step 5: Solve for x
    x = 166,308,586,149,602.16/21,188,917.20
  6. Step 6: Final answer
    x = 7,848,847.80

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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.