Finding the Fourth Proportional to 4,209,840.33, 5,809,145.82 and 3,107,857.84
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Solution
The fourth proportional to 4,209,840.33, 5,809,145.82 and 3,107,857.84 is: 4,288,523.55
Step by Step Solution
- Step 1: Write the proportion equation
4,209,840.33 : 5,809,145.82 = 3,107,857.84 : x - Step 2: Convert to fraction form
4,209,840.33/5,809,145.82 = 3,107,857.84/x - Step 3: Cross multiply
4,209,840.33x = 5,809,145.82 × 3,107,857.84 - Step 4: Simplify right side
4,209,840.33x = 18,053,999,380,390.23 - Step 5: Solve for x
x = 18,053,999,380,390.23/4,209,840.33 - Step 6: Final answer
x = 4,288,523.55
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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.