Finding the Fourth Proportional to 3,743,476.21, 5,161,316.11 and 3,124,172.15
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Solution
The fourth proportional to 3,743,476.21, 5,161,316.11 and 3,124,172.15 is: 4,307,450.92
Step by Step Solution
- Step 1: Write the proportion equation
3,743,476.21 : 5,161,316.11 = 3,124,172.15 : x - Step 2: Convert to fraction form
3,743,476.21/5,161,316.11 = 3,124,172.15/x - Step 3: Cross multiply
3,743,476.21x = 5,161,316.11 × 3,124,172.15 - Step 4: Simplify right side
3,743,476.21x = 16,124,840,048,208.34 - Step 5: Solve for x
x = 16,124,840,048,208.34/3,743,476.21 - Step 6: Final answer
x = 4,307,450.92
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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.