Finding the Fourth Proportional to 4,989,722.88, 7,478,220.92 and 2,431,548.48
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Solution
The fourth proportional to 4,989,722.88, 7,478,220.92 and 2,431,548.48 is: 3,644,221.76
Step by Step Solution
- Step 1: Write the proportion equation
4,989,722.88 : 7,478,220.92 = 2,431,548.48 : x - Step 2: Convert to fraction form
4,989,722.88/7,478,220.92 = 2,431,548.48/x - Step 3: Cross multiply
4,989,722.88x = 7,478,220.92 × 2,431,548.48 - Step 4: Simplify right side
4,989,722.88x = 18,183,656,711,130.20 - Step 5: Solve for x
x = 18,183,656,711,130.20/4,989,722.88 - Step 6: Final answer
x = 3,644,221.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.