Finding the Fourth Proportional to 5,137,879.41, 7,706,797.11 and 1,299,738.15
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Solution
The fourth proportional to 5,137,879.41, 7,706,797.11 and 1,299,738.15 is: 1,949,601.66
Step by Step Solution
- Step 1: Write the proportion equation
5,137,879.41 : 7,706,797.11 = 1,299,738.15 : x - Step 2: Convert to fraction form
5,137,879.41/7,706,797.11 = 1,299,738.15/x - Step 3: Cross multiply
5,137,879.41x = 7,706,797.11 × 1,299,738.15 - Step 4: Simplify right side
5,137,879.41x = 10,016,818,218,176.75 - Step 5: Solve for x
x = 10,016,818,218,176.75/5,137,879.41 - Step 6: Final answer
x = 1,949,601.66
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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.