Home / 321,565,682.72-443,760,861-180,417,418.20

Finding the Fourth Proportional to 321,565,682.72, 443,760,861 and 180,417,418.20

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Solution

The fourth proportional to 321,565,682.72, 443,760,861 and 180,417,418.20 is: 248,976,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,565,682.72 : 443,760,861 = 180,417,418.20 : x
  2. Step 2: Convert to fraction form
    321,565,682.72/443,760,861 = 180,417,418.20/x
  3. Step 3: Cross multiply
    321,565,682.72x = 443,760,861 × 180,417,418.20
  4. Step 4: Simplify right side
    321,565,682.72x = 80,062,188,839,829,072
  5. Step 5: Solve for x
    x = 80,062,188,839,829,072/321,565,682.72
  6. Step 6: Final answer
    x = 248,976,159.90

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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.