Finding the Fourth Proportional to 13,631,498.09, 18,811,164.62 and 7,519,924.97
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Solution
The fourth proportional to 13,631,498.09, 18,811,164.62 and 7,519,924.97 is: 10,377,329.45
Step by Step Solution
- Step 1: Write the proportion equation
13,631,498.09 : 18,811,164.62 = 7,519,924.97 : x - Step 2: Convert to fraction form
13,631,498.09/18,811,164.62 = 7,519,924.97/x - Step 3: Cross multiply
13,631,498.09x = 18,811,164.62 × 7,519,924.97 - Step 4: Simplify right side
13,631,498.09x = 141,458,546,550,146.84 - Step 5: Solve for x
x = 141,458,546,550,146.84/13,631,498.09 - Step 6: Final answer
x = 10,377,329.45
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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.