Finding the Fourth Proportional to 3,019,799.88, 4,167,198.09 and 1,643,148.99
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Solution
The fourth proportional to 3,019,799.88, 4,167,198.09 and 1,643,148.99 is: 2,267,477.19
Step by Step Solution
- Step 1: Write the proportion equation
3,019,799.88 : 4,167,198.09 = 1,643,148.99 : x - Step 2: Convert to fraction form
3,019,799.88/4,167,198.09 = 1,643,148.99/x - Step 3: Cross multiply
3,019,799.88x = 4,167,198.09 × 1,643,148.99 - Step 4: Simplify right side
3,019,799.88x = 6,847,327,332,713.43 - Step 5: Solve for x
x = 6,847,327,332,713.43/3,019,799.88 - Step 6: Final answer
x = 2,267,477.19
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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.