Finding the Fourth Proportional to 18,738,124.35, 28,107,186.53 and 11,557,765.95
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Solution
The fourth proportional to 18,738,124.35, 28,107,186.53 and 11,557,765.95 is: 17,336,648.93
Step by Step Solution
- Step 1: Write the proportion equation
18,738,124.35 : 28,107,186.53 = 11,557,765.95 : x - Step 2: Convert to fraction form
18,738,124.35/28,107,186.53 = 11,557,765.95/x - Step 3: Cross multiply
18,738,124.35x = 28,107,186.53 × 11,557,765.95 - Step 4: Simplify right side
18,738,124.35x = 324,856,283,368,943.81 - Step 5: Solve for x
x = 324,856,283,368,943.81/18,738,124.35 - Step 6: Final answer
x = 17,336,648.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.