Home / 18,678,529.30-28,004,562.90-8,298,047.10

Finding the Fourth Proportional to 18,678,529.30, 28,004,562.90 and 8,298,047.10

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Solution

The fourth proportional to 18,678,529.30, 28,004,562.90 and 8,298,047.10 is: 12,441,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,529.30 : 28,004,562.90 = 8,298,047.10 : x
  2. Step 2: Convert to fraction form
    18,678,529.30/28,004,562.90 = 8,298,047.10/x
  3. Step 3: Cross multiply
    18,678,529.30x = 28,004,562.90 × 8,298,047.10
  4. Step 4: Simplify right side
    18,678,529.30x = 232,383,181,959,112.56
  5. Step 5: Solve for x
    x = 232,383,181,959,112.56/18,678,529.30
  6. Step 6: Final answer
    x = 12,441,192.68

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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.