Finding the Fourth Proportional to 4,278,113.09, 6,412,851.68 and 2,681,797.20
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Solution
The fourth proportional to 4,278,113.09, 6,412,851.68 and 2,681,797.20 is: 4,019,989.03
Step by Step Solution
- Step 1: Write the proportion equation
4,278,113.09 : 6,412,851.68 = 2,681,797.20 : x - Step 2: Convert to fraction form
4,278,113.09/6,412,851.68 = 2,681,797.20/x - Step 3: Cross multiply
4,278,113.09x = 6,412,851.68 × 2,681,797.20 - Step 4: Simplify right side
4,278,113.09x = 17,197,967,679,439.30 - Step 5: Solve for x
x = 17,197,967,679,439.30/4,278,113.09 - Step 6: Final answer
x = 4,019,989.03
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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.