Finding the Fourth Proportional to 68,410,851.72, 94,408,202.10 and 37,469,028.12
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Solution
The fourth proportional to 68,410,851.72, 94,408,202.10 and 37,469,028.12 is: 51,707,930.69
Step by Step Solution
- Step 1: Write the proportion equation
68,410,851.72 : 94,408,202.10 = 37,469,028.12 : x - Step 2: Convert to fraction form
68,410,851.72/94,408,202.10 = 37,469,028.12/x - Step 3: Cross multiply
68,410,851.72x = 94,408,202.10 × 37,469,028.12 - Step 4: Simplify right side
68,410,851.72x = 3,537,383,579,243,542.50 - Step 5: Solve for x
x = 3,537,383,579,243,542.50/68,410,851.72 - Step 6: Final answer
x = 51,707,930.69
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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.