Home / 472,392,012.80-708,588,019.20-443,670,579.20

Finding the Fourth Proportional to 472,392,012.80, 708,588,019.20 and 443,670,579.20

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Solution

The fourth proportional to 472,392,012.80, 708,588,019.20 and 443,670,579.20 is: 665,505,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,012.80 : 708,588,019.20 = 443,670,579.20 : x
  2. Step 2: Convert to fraction form
    472,392,012.80/708,588,019.20 = 443,670,579.20/x
  3. Step 3: Cross multiply
    472,392,012.80x = 708,588,019.20 × 443,670,579.20
  4. Step 4: Simplify right side
    472,392,012.80x = 314,379,656,892,644,736
  5. Step 5: Solve for x
    x = 314,379,656,892,644,736/472,392,012.80
  6. Step 6: Final answer
    x = 665,505,868.80

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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.