Home / 82,572,257.20-123,855,580.62-21,162,018.91

Finding the Fourth Proportional to 82,572,257.20, 123,855,580.62 and 21,162,018.91

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Solution

The fourth proportional to 82,572,257.20, 123,855,580.62 and 21,162,018.91 is: 31,742,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,572,257.20 : 123,855,580.62 = 21,162,018.91 : x
  2. Step 2: Convert to fraction form
    82,572,257.20/123,855,580.62 = 21,162,018.91/x
  3. Step 3: Cross multiply
    82,572,257.20x = 123,855,580.62 × 21,162,018.91
  4. Step 4: Simplify right side
    82,572,257.20x = 2,621,034,139,189,469.50
  5. Step 5: Solve for x
    x = 2,621,034,139,189,469.50/82,572,257.20
  6. Step 6: Final answer
    x = 31,742,309.44

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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.