Home / 13,520,399.87-20,280,599.78-3,285,207.07

Finding the Fourth Proportional to 13,520,399.87, 20,280,599.78 and 3,285,207.07

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Solution

The fourth proportional to 13,520,399.87, 20,280,599.78 and 3,285,207.07 is: 4,927,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520,399.87 : 20,280,599.78 = 3,285,207.07 : x
  2. Step 2: Convert to fraction form
    13,520,399.87/20,280,599.78 = 3,285,207.07/x
  3. Step 3: Cross multiply
    13,520,399.87x = 20,280,599.78 × 3,285,207.07
  4. Step 4: Simplify right side
    13,520,399.87x = 66,625,969,713,968.91
  5. Step 5: Solve for x
    x = 66,625,969,713,968.91/13,520,399.87
  6. Step 6: Final answer
    x = 4,927,810.59

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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.