Finding the Fourth Proportional to 3,875,804.74, 5,348,571.51 and 2,156,896.18
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Solution
The fourth proportional to 3,875,804.74, 5,348,571.51 and 2,156,896.18 is: 2,976,495.01
Step by Step Solution
- Step 1: Write the proportion equation
3,875,804.74 : 5,348,571.51 = 2,156,896.18 : x - Step 2: Convert to fraction form
3,875,804.74/5,348,571.51 = 2,156,896.18/x - Step 3: Cross multiply
3,875,804.74x = 5,348,571.51 × 2,156,896.18 - Step 4: Simplify right side
3,875,804.74x = 11,536,313,458,375.83 - Step 5: Solve for x
x = 11,536,313,458,375.83/3,875,804.74 - Step 6: Final answer
x = 2,976,495.01
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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.