Home / 380,491,735.38-525,081,282.21-206,651,479.38

Finding the Fourth Proportional to 380,491,735.38, 525,081,282.21 and 206,651,479.38

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Solution

The fourth proportional to 380,491,735.38, 525,081,282.21 and 206,651,479.38 is: 285,180,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,491,735.38 : 525,081,282.21 = 206,651,479.38 : x
  2. Step 2: Convert to fraction form
    380,491,735.38/525,081,282.21 = 206,651,479.38/x
  3. Step 3: Cross multiply
    380,491,735.38x = 525,081,282.21 × 206,651,479.38
  4. Step 4: Simplify right side
    380,491,735.38x = 108,508,823,763,443,776
  5. Step 5: Solve for x
    x = 108,508,823,763,443,776/380,491,735.38
  6. Step 6: Final answer
    x = 285,180,501.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.