Finding the Fourth Proportional to 6,381,827.56, 9,572,824.42 and 2,121,995.80
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Solution
The fourth proportional to 6,381,827.56, 9,572,824.42 and 2,121,995.80 is: 3,183,021.32
Step by Step Solution
- Step 1: Write the proportion equation
6,381,827.56 : 9,572,824.42 = 2,121,995.80 : x - Step 2: Convert to fraction form
6,381,827.56/9,572,824.42 = 2,121,995.80/x - Step 3: Cross multiply
6,381,827.56x = 9,572,824.42 × 2,121,995.80 - Step 4: Simplify right side
6,381,827.56x = 20,313,493,213,377.43 - Step 5: Solve for x
x = 20,313,493,213,377.43/6,381,827.56 - Step 6: Final answer
x = 3,183,021.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.