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Finding the Fourth Proportional to 197,978,475.49, 296,967,713.69 and 105,582,287.79

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Solution

The fourth proportional to 197,978,475.49, 296,967,713.69 and 105,582,287.79 is: 158,373,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,978,475.49 : 296,967,713.69 = 105,582,287.79 : x
  2. Step 2: Convert to fraction form
    197,978,475.49/296,967,713.69 = 105,582,287.79/x
  3. Step 3: Cross multiply
    197,978,475.49x = 296,967,713.69 × 105,582,287.79
  4. Step 4: Simplify right side
    197,978,475.49x = 31,354,530,611,419,860
  5. Step 5: Solve for x
    x = 31,354,530,611,419,860/197,978,475.49
  6. Step 6: Final answer
    x = 158,373,431.93

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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.