Finding the Fourth Proportional to 13,431,248.88, 18,534,582.66 and 7,319,546.16
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Solution
The fourth proportional to 13,431,248.88, 18,534,582.66 and 7,319,546.16 is: 10,100,678.99
Step by Step Solution
- Step 1: Write the proportion equation
13,431,248.88 : 18,534,582.66 = 7,319,546.16 : x - Step 2: Convert to fraction form
13,431,248.88/18,534,582.66 = 7,319,546.16/x - Step 3: Cross multiply
13,431,248.88x = 18,534,582.66 × 7,319,546.16 - Step 4: Simplify right side
13,431,248.88x = 135,664,733,336,205.59 - Step 5: Solve for x
x = 135,664,733,336,205.59/13,431,248.88 - Step 6: Final answer
x = 10,100,678.99
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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.