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Finding the Fourth Proportional to 19,978,943.10, 29,956,279.20 and 7,833,855.78

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Solution

The fourth proportional to 19,978,943.10, 29,956,279.20 and 7,833,855.78 is: 11,746,025.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,943.10 : 29,956,279.20 = 7,833,855.78 : x
  2. Step 2: Convert to fraction form
    19,978,943.10/29,956,279.20 = 7,833,855.78/x
  3. Step 3: Cross multiply
    19,978,943.10x = 29,956,279.20 × 7,833,855.78
  4. Step 4: Simplify right side
    19,978,943.10x = 234,673,170,958,213.78
  5. Step 5: Solve for x
    x = 234,673,170,958,213.78/19,978,943.10
  6. Step 6: Final answer
    x = 11,746,025.29

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Why These Related Problems?

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