Home / 13,321,907.94-18,384,678.09-8,164,272.90

Finding the Fourth Proportional to 13,321,907.94, 18,384,678.09 and 8,164,272.90

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Solution

The fourth proportional to 13,321,907.94, 18,384,678.09 and 8,164,272.90 is: 11,266,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,907.94 : 18,384,678.09 = 8,164,272.90 : x
  2. Step 2: Convert to fraction form
    13,321,907.94/18,384,678.09 = 8,164,272.90/x
  3. Step 3: Cross multiply
    13,321,907.94x = 18,384,678.09 × 8,164,272.90
  4. Step 4: Simplify right side
    13,321,907.94x = 150,097,529,105,410.78
  5. Step 5: Solve for x
    x = 150,097,529,105,410.78/13,321,907.94
  6. Step 6: Final answer
    x = 11,266,969.40

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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.