Home / 12,989,114.20-19,479,078.60-4,467,468.70

Finding the Fourth Proportional to 12,989,114.20, 19,479,078.60 and 4,467,468.70

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Solution

The fourth proportional to 12,989,114.20, 19,479,078.60 and 4,467,468.70 is: 6,699,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,114.20 : 19,479,078.60 = 4,467,468.70 : x
  2. Step 2: Convert to fraction form
    12,989,114.20/19,479,078.60 = 4,467,468.70/x
  3. Step 3: Cross multiply
    12,989,114.20x = 19,479,078.60 × 4,467,468.70
  4. Step 4: Simplify right side
    12,989,114.20x = 87,022,173,950,339.83
  5. Step 5: Solve for x
    x = 87,022,173,950,339.83/12,989,114.20
  6. Step 6: Final answer
    x = 6,699,623.44

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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.