Home / 472,392,918.80-708,589,378.20-443,695,104.80

Finding the Fourth Proportional to 472,392,918.80, 708,589,378.20 and 443,695,104.80

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Solution

The fourth proportional to 472,392,918.80, 708,589,378.20 and 443,695,104.80 is: 665,542,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,918.80 : 708,589,378.20 = 443,695,104.80 : x
  2. Step 2: Convert to fraction form
    472,392,918.80/708,589,378.20 = 443,695,104.80/x
  3. Step 3: Cross multiply
    472,392,918.80x = 708,589,378.20 × 443,695,104.80
  4. Step 4: Simplify right side
    472,392,918.80x = 314,397,638,420,615,872
  5. Step 5: Solve for x
    x = 314,397,638,420,615,872/472,392,918.80
  6. Step 6: Final answer
    x = 665,542,657.20

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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.