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Finding the Fourth Proportional to 20,366,978.70, 30,550,468.05 and 5,991,499.65

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Solution

The fourth proportional to 20,366,978.70, 30,550,468.05 and 5,991,499.65 is: 8,987,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366,978.70 : 30,550,468.05 = 5,991,499.65 : x
  2. Step 2: Convert to fraction form
    20,366,978.70/30,550,468.05 = 5,991,499.65/x
  3. Step 3: Cross multiply
    20,366,978.70x = 30,550,468.05 × 5,991,499.65
  4. Step 4: Simplify right side
    20,366,978.70x = 183,043,118,628,911.19
  5. Step 5: Solve for x
    x = 183,043,118,628,911.19/20,366,978.70
  6. Step 6: Final answer
    x = 8,987,249.48

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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.