Finding the Fourth Proportional to 6,418,887.04, 8,858,971.38 and 3,972,286.09
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Solution
The fourth proportional to 6,418,887.04, 8,858,971.38 and 3,972,286.09 is: 5,482,316.26
Step by Step Solution
- Step 1: Write the proportion equation
6,418,887.04 : 8,858,971.38 = 3,972,286.09 : x - Step 2: Convert to fraction form
6,418,887.04/8,858,971.38 = 3,972,286.09/x - Step 3: Cross multiply
6,418,887.04x = 8,858,971.38 × 3,972,286.09 - Step 4: Simplify right side
6,418,887.04x = 35,190,368,784,482.11 - Step 5: Solve for x
x = 35,190,368,784,482.11/6,418,887.04 - Step 6: Final answer
x = 5,482,316.26
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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.