Finding the Fourth Proportional to 4,990,161.68, 6,886,418.29 and 2,698,316.90
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Solution
The fourth proportional to 4,990,161.68, 6,886,418.29 and 2,698,316.90 is: 3,723,674.71
Step by Step Solution
- Step 1: Write the proportion equation
4,990,161.68 : 6,886,418.29 = 2,698,316.90 : x - Step 2: Convert to fraction form
4,990,161.68/6,886,418.29 = 2,698,316.90/x - Step 3: Cross multiply
4,990,161.68x = 6,886,418.29 × 2,698,316.90 - Step 4: Simplify right side
4,990,161.68x = 18,581,738,852,376.10 - Step 5: Solve for x
x = 18,581,738,852,376.10/4,990,161.68 - Step 6: Final answer
x = 3,723,674.71
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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.