Home / 11,028,906.60-16,543,359.90-7,981,978.20

Finding the Fourth Proportional to 11,028,906.60, 16,543,359.90 and 7,981,978.20

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Solution

The fourth proportional to 11,028,906.60, 16,543,359.90 and 7,981,978.20 is: 11,972,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028,906.60 : 16,543,359.90 = 7,981,978.20 : x
  2. Step 2: Convert to fraction form
    11,028,906.60/16,543,359.90 = 7,981,978.20/x
  3. Step 3: Cross multiply
    11,028,906.60x = 16,543,359.90 × 7,981,978.20
  4. Step 4: Simplify right side
    11,028,906.60x = 132,048,738,076,554.19
  5. Step 5: Solve for x
    x = 132,048,738,076,554.19/11,028,906.60
  6. Step 6: Final answer
    x = 11,972,967.30

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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.