Home / 321,171,812.45-443,217,101.13-181,942,574.21

Finding the Fourth Proportional to 321,171,812.45, 443,217,101.13 and 181,942,574.21

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Solution

The fourth proportional to 321,171,812.45, 443,217,101.13 and 181,942,574.21 is: 251,080,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,171,812.45 : 443,217,101.13 = 181,942,574.21 : x
  2. Step 2: Convert to fraction form
    321,171,812.45/443,217,101.13 = 181,942,574.21/x
  3. Step 3: Cross multiply
    321,171,812.45x = 443,217,101.13 × 181,942,574.21
  4. Step 4: Simplify right side
    321,171,812.45x = 80,640,060,313,486,096
  5. Step 5: Solve for x
    x = 80,640,060,313,486,096/321,171,812.45
  6. Step 6: Final answer
    x = 251,080,752.38

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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.