Home / 20,362,662.84-28,099,755.90-11,195,235.48

Finding the Fourth Proportional to 20,362,662.84, 28,099,755.90 and 11,195,235.48

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Solution

The fourth proportional to 20,362,662.84, 28,099,755.90 and 11,195,235.48 is: 15,449,029.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362,662.84 : 28,099,755.90 = 11,195,235.48 : x
  2. Step 2: Convert to fraction form
    20,362,662.84/28,099,755.90 = 11,195,235.48/x
  3. Step 3: Cross multiply
    20,362,662.84x = 28,099,755.90 × 11,195,235.48
  4. Step 4: Simplify right side
    20,362,662.84x = 314,583,384,231,019.31
  5. Step 5: Solve for x
    x = 314,583,384,231,019.31/20,362,662.84
  6. Step 6: Final answer
    x = 15,449,029.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.