Home / 20,499,109.73-30,769,940.41-11,880,050.12

Finding the Fourth Proportional to 20,499,109.73, 30,769,940.41 and 11,880,050.12

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Solution

The fourth proportional to 20,499,109.73, 30,769,940.41 and 11,880,050.12 is: 17,832,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499,109.73 : 30,769,940.41 = 11,880,050.12 : x
  2. Step 2: Convert to fraction form
    20,499,109.73/30,769,940.41 = 11,880,050.12/x
  3. Step 3: Cross multiply
    20,499,109.73x = 30,769,940.41 × 11,880,050.12
  4. Step 4: Simplify right side
    20,499,109.73x = 365,548,434,260,213.31
  5. Step 5: Solve for x
    x = 365,548,434,260,213.31/20,499,109.73
  6. Step 6: Final answer
    x = 17,832,405.36

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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.