Home / 669,942,517.20-923,879,058.10-443,523,085.20

Finding the Fourth Proportional to 669,942,517.20, 923,879,058.10 and 443,523,085.20

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Solution

The fourth proportional to 669,942,517.20, 923,879,058.10 and 443,523,085.20 is: 611,637,087.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,942,517.20 : 923,879,058.10 = 443,523,085.20 : x
  2. Step 2: Convert to fraction form
    669,942,517.20/923,879,058.10 = 443,523,085.20/x
  3. Step 3: Cross multiply
    669,942,517.20x = 923,879,058.10 × 443,523,085.20
  4. Step 4: Simplify right side
    669,942,517.20x = 409,761,690,200,182,080
  5. Step 5: Solve for x
    x = 409,761,690,200,182,080/669,942,517.20
  6. Step 6: Final answer
    x = 611,637,087.78

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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.