Home / 82,378,628.20-123,567,942.30-20,967,668.20

Finding the Fourth Proportional to 82,378,628.20, 123,567,942.30 and 20,967,668.20

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Solution

The fourth proportional to 82,378,628.20, 123,567,942.30 and 20,967,668.20 is: 31,451,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,378,628.20 : 123,567,942.30 = 20,967,668.20 : x
  2. Step 2: Convert to fraction form
    82,378,628.20/123,567,942.30 = 20,967,668.20/x
  3. Step 3: Cross multiply
    82,378,628.20x = 123,567,942.30 × 20,967,668.20
  4. Step 4: Simplify right side
    82,378,628.20x = 2,590,931,614,303,144.50
  5. Step 5: Solve for x
    x = 2,590,931,614,303,144.50/82,378,628.20
  6. Step 6: Final answer
    x = 31,451,502.30

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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.