Finding the Fourth Proportional to 3,633,685.20, 5,445,862.20 and 2,788,045.20
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Solution
The fourth proportional to 3,633,685.20, 5,445,862.20 and 2,788,045.20 is: 4,178,487.99
Step by Step Solution
- Step 1: Write the proportion equation
3,633,685.20 : 5,445,862.20 = 2,788,045.20 : x - Step 2: Convert to fraction form
3,633,685.20/5,445,862.20 = 2,788,045.20/x - Step 3: Cross multiply
3,633,685.20x = 5,445,862.20 × 2,788,045.20 - Step 4: Simplify right side
3,633,685.20x = 15,183,309,966,571.44 - Step 5: Solve for x
x = 15,183,309,966,571.44/3,633,685.20 - Step 6: Final answer
x = 4,178,487.99
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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.