Finding the Fourth Proportional to 3,990,982.68, 5,507,556.44 and 2,180,146.68
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Solution
The fourth proportional to 3,990,982.68, 5,507,556.44 and 2,180,146.68 is: 3,008,602.60
Step by Step Solution
- Step 1: Write the proportion equation
3,990,982.68 : 5,507,556.44 = 2,180,146.68 : x - Step 2: Convert to fraction form
3,990,982.68/5,507,556.44 = 2,180,146.68/x - Step 3: Cross multiply
3,990,982.68x = 5,507,556.44 × 2,180,146.68 - Step 4: Simplify right side
3,990,982.68x = 12,007,280,876,677.89 - Step 5: Solve for x
x = 12,007,280,876,677.89/3,990,982.68 - Step 6: Final answer
x = 3,008,602.60
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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.