Finding the Fourth Proportional to 4,168,112.40, 6,242,837.40 and 3,218,403.60
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Solution
The fourth proportional to 4,168,112.40, 6,242,837.40 and 3,218,403.60 is: 4,820,400.32
Step by Step Solution
- Step 1: Write the proportion equation
4,168,112.40 : 6,242,837.40 = 3,218,403.60 : x - Step 2: Convert to fraction form
4,168,112.40/6,242,837.40 = 3,218,403.60/x - Step 3: Cross multiply
4,168,112.40x = 6,242,837.40 × 3,218,403.60 - Step 4: Simplify right side
4,168,112.40x = 20,091,970,362,374.64 - Step 5: Solve for x
x = 20,091,970,362,374.64/4,168,112.40 - Step 6: Final answer
x = 4,820,400.32
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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.