Finding the Fourth Proportional to 13,591,102.98, 18,755,716.68 and 7,479,531.48
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Solution
The fourth proportional to 13,591,102.98, 18,755,716.68 and 7,479,531.48 is: 10,321,750.45
Step by Step Solution
- Step 1: Write the proportion equation
13,591,102.98 : 18,755,716.68 = 7,479,531.48 : x - Step 2: Convert to fraction form
13,591,102.98/18,755,716.68 = 7,479,531.48/x - Step 3: Cross multiply
13,591,102.98x = 18,755,716.68 × 7,479,531.48 - Step 4: Simplify right side
13,591,102.98x = 140,283,973,338,021.09 - Step 5: Solve for x
x = 140,283,973,338,021.09/13,591,102.98 - Step 6: Final answer
x = 10,321,750.45
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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.