Finding the Fourth Proportional to 11,879,881.70, 16,394,236.73 and 6,447,373.70
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Solution
The fourth proportional to 11,879,881.70, 16,394,236.73 and 6,447,373.70 is: 8,897,375.69
Step by Step Solution
- Step 1: Write the proportion equation
11,879,881.70 : 16,394,236.73 = 6,447,373.70 : x - Step 2: Convert to fraction form
11,879,881.70/16,394,236.73 = 6,447,373.70/x - Step 3: Cross multiply
11,879,881.70x = 16,394,236.73 × 6,447,373.70 - Step 4: Simplify right side
11,879,881.70x = 105,699,770,610,367.95 - Step 5: Solve for x
x = 105,699,770,610,367.95/11,879,881.70 - Step 6: Final answer
x = 8,897,375.69
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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.