Home / 318,890,882.88-440,069,414.94-172,213,166.88

Finding the Fourth Proportional to 318,890,882.88, 440,069,414.94 and 172,213,166.88

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Solution

The fourth proportional to 318,890,882.88, 440,069,414.94 and 172,213,166.88 is: 237,654,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,890,882.88 : 440,069,414.94 = 172,213,166.88 : x
  2. Step 2: Convert to fraction form
    318,890,882.88/440,069,414.94 = 172,213,166.88/x
  3. Step 3: Cross multiply
    318,890,882.88x = 440,069,414.94 × 172,213,166.88
  4. Step 4: Simplify right side
    318,890,882.88x = 75,785,747,593,846,176
  5. Step 5: Solve for x
    x = 75,785,747,593,846,176/318,890,882.88
  6. Step 6: Final answer
    x = 237,654,168.44

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1.5x scale

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.