Finding the Fourth Proportional to 3,958,809.12, 5,463,137.34 and 2,147,973.12
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Solution
The fourth proportional to 3,958,809.12, 5,463,137.34 and 2,147,973.12 is: 2,964,192.46
Step by Step Solution
- Step 1: Write the proportion equation
3,958,809.12 : 5,463,137.34 = 2,147,973.12 : x - Step 2: Convert to fraction form
3,958,809.12/5,463,137.34 = 2,147,973.12/x - Step 3: Cross multiply
3,958,809.12x = 5,463,137.34 × 2,147,973.12 - Step 4: Simplify right side
3,958,809.12x = 11,734,672,157,188.30 - Step 5: Solve for x
x = 11,734,672,157,188.30/3,958,809.12 - Step 6: Final answer
x = 2,964,192.46
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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.