Finding the Fourth Proportional to 6,418,888.04, 8,858,972.76 and 3,972,287.09
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Solution
The fourth proportional to 6,418,888.04, 8,858,972.76 and 3,972,287.09 is: 5,482,317.64
Step by Step Solution
- Step 1: Write the proportion equation
6,418,888.04 : 8,858,972.76 = 3,972,287.09 : x - Step 2: Convert to fraction form
6,418,888.04/8,858,972.76 = 3,972,287.09/x - Step 3: Cross multiply
6,418,888.04x = 8,858,972.76 × 3,972,287.09 - Step 4: Simplify right side
6,418,888.04x = 35,190,383,125,209.66 - Step 5: Solve for x
x = 35,190,383,125,209.66/6,418,888.04 - Step 6: Final answer
x = 5,482,317.64
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1.5x scale
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.