Home / 19,008,121.20-28,512,181.80-9,424,978.80

Finding the Fourth Proportional to 19,008,121.20, 28,512,181.80 and 9,424,978.80

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Solution

The fourth proportional to 19,008,121.20, 28,512,181.80 and 9,424,978.80 is: 14,137,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,121.20 : 28,512,181.80 = 9,424,978.80 : x
  2. Step 2: Convert to fraction form
    19,008,121.20/28,512,181.80 = 9,424,978.80/x
  3. Step 3: Cross multiply
    19,008,121.20x = 28,512,181.80 × 9,424,978.80
  4. Step 4: Simplify right side
    19,008,121.20x = 268,726,709,006,745.88
  5. Step 5: Solve for x
    x = 268,726,709,006,745.88/19,008,121.20
  6. Step 6: Final answer
    x = 14,137,468.20

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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.