Home / 281,231,163.70-421,845,540.73-71,143,838.21

Finding the Fourth Proportional to 281,231,163.70, 421,845,540.73 and 71,143,838.21

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Solution

The fourth proportional to 281,231,163.70, 421,845,540.73 and 71,143,838.21 is: 106,715,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,231,163.70 : 421,845,540.73 = 71,143,838.21 : x
  2. Step 2: Convert to fraction form
    281,231,163.70/421,845,540.73 = 71,143,838.21/x
  3. Step 3: Cross multiply
    281,231,163.70x = 421,845,540.73 × 71,143,838.21
  4. Step 4: Simplify right side
    281,231,163.70x = 30,011,710,900,181,844
  5. Step 5: Solve for x
    x = 30,011,710,900,181,844/281,231,163.70
  6. Step 6: Final answer
    x = 106,715,452.53

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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.