Home / 221,201,133.39-331,764,706.83-81,112,642.26

Finding the Fourth Proportional to 221,201,133.39, 331,764,706.83 and 81,112,642.26

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Solution

The fourth proportional to 221,201,133.39, 331,764,706.83 and 81,112,642.26 is: 121,655,398.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,201,133.39 : 331,764,706.83 = 81,112,642.26 : x
  2. Step 2: Convert to fraction form
    221,201,133.39/331,764,706.83 = 81,112,642.26/x
  3. Step 3: Cross multiply
    221,201,133.39x = 331,764,706.83 × 81,112,642.26
  4. Step 4: Simplify right side
    221,201,133.39x = 26,910,311,978,665,416
  5. Step 5: Solve for x
    x = 26,910,311,978,665,416/221,201,133.39
  6. Step 6: Final answer
    x = 121,655,398.26

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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.