Home / 18,678,538.32-28,004,576.38-8,298,056.10

Finding the Fourth Proportional to 18,678,538.32, 28,004,576.38 and 8,298,056.10

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Solution

The fourth proportional to 18,678,538.32, 28,004,576.38 and 8,298,056.10 is: 12,441,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,538.32 : 28,004,576.38 = 8,298,056.10 : x
  2. Step 2: Convert to fraction form
    18,678,538.32/28,004,576.38 = 8,298,056.10/x
  3. Step 3: Cross multiply
    18,678,538.32x = 28,004,576.38 × 8,298,056.10
  4. Step 4: Simplify right side
    18,678,538.32x = 232,383,545,857,974.91
  5. Step 5: Solve for x
    x = 232,383,545,857,974.91/18,678,538.32
  6. Step 6: Final answer
    x = 12,441,206.15

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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.