Home / 21,340,840.56-29,453,163.48-12,171,381.36

Finding the Fourth Proportional to 21,340,840.56, 29,453,163.48 and 12,171,381.36

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Solution

The fourth proportional to 21,340,840.56, 29,453,163.48 and 12,171,381.36 is: 16,798,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340,840.56 : 29,453,163.48 = 12,171,381.36 : x
  2. Step 2: Convert to fraction form
    21,340,840.56/29,453,163.48 = 12,171,381.36/x
  3. Step 3: Cross multiply
    21,340,840.56x = 29,453,163.48 × 12,171,381.36
  4. Step 4: Simplify right side
    21,340,840.56x = 358,485,684,973,504.75
  5. Step 5: Solve for x
    x = 358,485,684,973,504.75/21,340,840.56
  6. Step 6: Final answer
    x = 16,798,105.21

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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.