Home / 78,972,051-118,433,940.06-27,842,112.36

Finding the Fourth Proportional to 78,972,051, 118,433,940.06 and 27,842,112.36

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Solution

The fourth proportional to 78,972,051, 118,433,940.06 and 27,842,112.36 is: 41,754,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,972,051 : 118,433,940.06 = 27,842,112.36 : x
  2. Step 2: Convert to fraction form
    78,972,051/118,433,940.06 = 27,842,112.36/x
  3. Step 3: Cross multiply
    78,972,051x = 118,433,940.06 × 27,842,112.36
  4. Step 4: Simplify right side
    78,972,051x = 3,297,451,066,388,025
  5. Step 5: Solve for x
    x = 3,297,451,066,388,025/78,972,051
  6. Step 6: Final answer
    x = 41,754,659.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.