Finding the Fourth Proportional to 3,992,388.36, 5,509,510.28 and 2,181,552.36
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Solution
The fourth proportional to 3,992,388.36, 5,509,510.28 and 2,181,552.36 is: 3,010,550.09
Step by Step Solution
- Step 1: Write the proportion equation
3,992,388.36 : 5,509,510.28 = 2,181,552.36 : x - Step 2: Convert to fraction form
3,992,388.36/5,509,510.28 = 2,181,552.36/x - Step 3: Cross multiply
3,992,388.36x = 5,509,510.28 × 2,181,552.36 - Step 4: Simplify right side
3,992,388.36x = 12,019,285,153,778.26 - Step 5: Solve for x
x = 12,019,285,153,778.26/3,992,388.36 - Step 6: Final answer
x = 3,010,550.09
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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.