Home / 20,118,936.94-27,767,756.34-11,858,517.05

Finding the Fourth Proportional to 20,118,936.94, 27,767,756.34 and 11,858,517.05

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Solution

The fourth proportional to 20,118,936.94, 27,767,756.34 and 11,858,517.05 is: 16,366,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,936.94 : 27,767,756.34 = 11,858,517.05 : x
  2. Step 2: Convert to fraction form
    20,118,936.94/27,767,756.34 = 11,858,517.05/x
  3. Step 3: Cross multiply
    20,118,936.94x = 27,767,756.34 × 11,858,517.05
  4. Step 4: Simplify right side
    20,118,936.94x = 329,284,411,859,296.81
  5. Step 5: Solve for x
    x = 329,284,411,859,296.81/20,118,936.94
  6. Step 6: Final answer
    x = 16,366,889.21

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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.