Finding the Fourth Proportional to 2,972,171.12, 4,102,851.84 and 2,006,609.36
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Solution
The fourth proportional to 2,972,171.12, 4,102,851.84 and 2,006,609.36 is: 2,769,968.68
Step by Step Solution
- Step 1: Write the proportion equation
2,972,171.12 : 4,102,851.84 = 2,006,609.36 : x - Step 2: Convert to fraction form
2,972,171.12/4,102,851.84 = 2,006,609.36/x - Step 3: Cross multiply
2,972,171.12x = 4,102,851.84 × 2,006,609.36 - Step 4: Simplify right side
2,972,171.12x = 8,232,820,904,837.22 - Step 5: Solve for x
x = 8,232,820,904,837.22/2,972,171.12 - Step 6: Final answer
x = 2,769,968.68
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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.