Home / 147,205,087.11-203,144,408.33-81,127,968.21

Finding the Fourth Proportional to 147,205,087.11, 203,144,408.33 and 81,127,968.21

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Solution

The fourth proportional to 147,205,087.11, 203,144,408.33 and 81,127,968.21 is: 111,957,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,205,087.11 : 203,144,408.33 = 81,127,968.21 : x
  2. Step 2: Convert to fraction form
    147,205,087.11/203,144,408.33 = 81,127,968.21/x
  3. Step 3: Cross multiply
    147,205,087.11x = 203,144,408.33 × 81,127,968.21
  4. Step 4: Simplify right side
    147,205,087.11x = 16,480,693,100,629,858
  5. Step 5: Solve for x
    x = 16,480,693,100,629,858/147,205,087.11
  6. Step 6: Final answer
    x = 111,957,361.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.