Finding the Fourth Proportional to 5,186,894.80, 7,781,350.56 and 1,991,786.08
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Solution
The fourth proportional to 5,186,894.80, 7,781,350.56 and 1,991,786.08 is: 2,988,066.33
Step by Step Solution
- Step 1: Write the proportion equation
5,186,894.80 : 7,781,350.56 = 1,991,786.08 : x - Step 2: Convert to fraction form
5,186,894.80/7,781,350.56 = 1,991,786.08/x - Step 3: Cross multiply
5,186,894.80x = 7,781,350.56 × 1,991,786.08 - Step 4: Simplify right side
5,186,894.80x = 15,498,785,729,008.21 - Step 5: Solve for x
x = 15,498,785,729,008.21/5,186,894.80 - Step 6: Final answer
x = 2,988,066.33
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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.