Finding the Fourth Proportional to 3,946,415.12, 5,446,057.68 and 2,135,579.12
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Solution
The fourth proportional to 3,946,415.12, 5,446,057.68 and 2,135,579.12 is: 2,947,101.79
Step by Step Solution
- Step 1: Write the proportion equation
3,946,415.12 : 5,446,057.68 = 2,135,579.12 : x - Step 2: Convert to fraction form
3,946,415.12/5,446,057.68 = 2,135,579.12/x - Step 3: Cross multiply
3,946,415.12x = 5,446,057.68 × 2,135,579.12 - Step 4: Simplify right side
3,946,415.12x = 11,630,487,067,723.64 - Step 5: Solve for x
x = 11,630,487,067,723.64/3,946,415.12 - Step 6: Final answer
x = 2,947,101.79
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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.