Finding the Fourth Proportional to 3,019,786.88, 4,167,180.15 and 1,643,135.99
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Solution
The fourth proportional to 3,019,786.88, 4,167,180.15 and 1,643,135.99 is: 2,267,459.25
Step by Step Solution
- Step 1: Write the proportion equation
3,019,786.88 : 4,167,180.15 = 1,643,135.99 : x - Step 2: Convert to fraction form
3,019,786.88/4,167,180.15 = 1,643,135.99/x - Step 3: Cross multiply
3,019,786.88x = 4,167,180.15 × 1,643,135.99 - Step 4: Simplify right side
3,019,786.88x = 6,847,243,681,278.60 - Step 5: Solve for x
x = 6,847,243,681,278.60/3,019,786.88 - Step 6: Final answer
x = 2,267,459.25
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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.