Finding the Fourth Proportional to 3,456,771.63, 4,769,632.71 and 1,986,396.18
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Solution
The fourth proportional to 3,456,771.63, 4,769,632.71 and 1,986,396.18 is: 2,740,817.51
Step by Step Solution
- Step 1: Write the proportion equation
3,456,771.63 : 4,769,632.71 = 1,986,396.18 : x - Step 2: Convert to fraction form
3,456,771.63/4,769,632.71 = 1,986,396.18/x - Step 3: Cross multiply
3,456,771.63x = 4,769,632.71 × 1,986,396.18 - Step 4: Simplify right side
3,456,771.63x = 9,474,380,195,147.05 - Step 5: Solve for x
x = 9,474,380,195,147.05/3,456,771.63 - Step 6: Final answer
x = 2,740,817.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.