Finding the Fourth Proportional to 3,179,022.18, 4,387,165.98 and 1,821,157.62
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Solution
The fourth proportional to 3,179,022.18, 4,387,165.98 and 1,821,157.62 is: 2,513,263.61
Step by Step Solution
- Step 1: Write the proportion equation
3,179,022.18 : 4,387,165.98 = 1,821,157.62 : x - Step 2: Convert to fraction form
3,179,022.18/4,387,165.98 = 1,821,157.62/x - Step 3: Cross multiply
3,179,022.18x = 4,387,165.98 × 1,821,157.62 - Step 4: Simplify right side
3,179,022.18x = 7,989,720,745,575.98 - Step 5: Solve for x
x = 7,989,720,745,575.98/3,179,022.18 - Step 6: Final answer
x = 2,513,263.61
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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.