Home / 472,392,940.80-708,589,411.20-443,695,126.80

Finding the Fourth Proportional to 472,392,940.80, 708,589,411.20 and 443,695,126.80

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Solution

The fourth proportional to 472,392,940.80, 708,589,411.20 and 443,695,126.80 is: 665,542,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,940.80 : 708,589,411.20 = 443,695,126.80 : x
  2. Step 2: Convert to fraction form
    472,392,940.80/708,589,411.20 = 443,695,126.80/x
  3. Step 3: Cross multiply
    472,392,940.80x = 708,589,411.20 × 443,695,126.80
  4. Step 4: Simplify right side
    472,392,940.80x = 314,397,668,651,521,344
  5. Step 5: Solve for x
    x = 314,397,668,651,521,344/472,392,940.80
  6. Step 6: Final answer
    x = 665,542,690.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.