Home / 472,392,012.30-708,588,018.45-443,670,578.70

Finding the Fourth Proportional to 472,392,012.30, 708,588,018.45 and 443,670,578.70

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Solution

The fourth proportional to 472,392,012.30, 708,588,018.45 and 443,670,578.70 is: 665,505,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,012.30 : 708,588,018.45 = 443,670,578.70 : x
  2. Step 2: Convert to fraction form
    472,392,012.30/708,588,018.45 = 443,670,578.70/x
  3. Step 3: Cross multiply
    472,392,012.30x = 708,588,018.45 × 443,670,578.70
  4. Step 4: Simplify right side
    472,392,012.30x = 314,379,656,205,597,760
  5. Step 5: Solve for x
    x = 314,379,656,205,597,760/472,392,012.30
  6. Step 6: Final answer
    x = 665,505,868.05

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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.