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Finding the Fourth Proportional to 18,481,641.20, 27,669,317.70 and 17,950,200.20

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Solution

The fourth proportional to 18,481,641.20, 27,669,317.70 and 17,950,200.20 is: 26,873,684.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481,641.20 : 27,669,317.70 = 17,950,200.20 : x
  2. Step 2: Convert to fraction form
    18,481,641.20/27,669,317.70 = 17,950,200.20/x
  3. Step 3: Cross multiply
    18,481,641.20x = 27,669,317.70 × 17,950,200.20
  4. Step 4: Simplify right side
    18,481,641.20x = 496,669,792,112,403.50
  5. Step 5: Solve for x
    x = 496,669,792,112,403.50/18,481,641.20
  6. Step 6: Final answer
    x = 26,873,684.36

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1.5x scale

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.