Finding the Fourth Proportional to 4,138,147.19, 6,207,224.21 and 1,978,664.21
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Solution
The fourth proportional to 4,138,147.19, 6,207,224.21 and 1,978,664.21 is: 2,967,997.95
Step by Step Solution
- Step 1: Write the proportion equation
4,138,147.19 : 6,207,224.21 = 1,978,664.21 : x - Step 2: Convert to fraction form
4,138,147.19/6,207,224.21 = 1,978,664.21/x - Step 3: Cross multiply
4,138,147.19x = 6,207,224.21 × 1,978,664.21 - Step 4: Simplify right side
4,138,147.19x = 12,282,012,377,540.16 - Step 5: Solve for x
x = 12,282,012,377,540.16/4,138,147.19 - Step 6: Final answer
x = 2,967,997.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.