Finding the Fourth Proportional to 11,880,117.18, 16,394,568.42 and 6,447,609.18
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Solution
The fourth proportional to 11,880,117.18, 16,394,568.42 and 6,447,609.18 is: 8,897,704.31
Step by Step Solution
- Step 1: Write the proportion equation
11,880,117.18 : 16,394,568.42 = 6,447,609.18 : x - Step 2: Convert to fraction form
11,880,117.18/16,394,568.42 = 6,447,609.18/x - Step 3: Cross multiply
11,880,117.18x = 16,394,568.42 × 6,447,609.18 - Step 4: Simplify right side
11,880,117.18x = 105,705,769,846,930.09 - Step 5: Solve for x
x = 105,705,769,846,930.09/11,880,117.18 - Step 6: Final answer
x = 8,897,704.31
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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.