Home / 20,290,844.94-28,003,137.49-11,125,259.16

Finding the Fourth Proportional to 20,290,844.94, 28,003,137.49 and 11,125,259.16

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Solution

The fourth proportional to 20,290,844.94, 28,003,137.49 and 11,125,259.16 is: 15,353,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290,844.94 : 28,003,137.49 = 11,125,259.16 : x
  2. Step 2: Convert to fraction form
    20,290,844.94/28,003,137.49 = 11,125,259.16/x
  3. Step 3: Cross multiply
    20,290,844.94x = 28,003,137.49 × 11,125,259.16
  4. Step 4: Simplify right side
    20,290,844.94x = 311,542,161,869,361.88
  5. Step 5: Solve for x
    x = 311,542,161,869,361.88/20,290,844.94
  6. Step 6: Final answer
    x = 15,353,828.92

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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.