Finding the Fourth Proportional to 86,290,578.84, 119,080,211.63 and 47,132,344.76
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Solution
The fourth proportional to 86,290,578.84, 119,080,211.63 and 47,132,344.76 is: 65,042,205.80
Step by Step Solution
- Step 1: Write the proportion equation
86,290,578.84 : 119,080,211.63 = 47,132,344.76 : x - Step 2: Convert to fraction form
86,290,578.84/119,080,211.63 = 47,132,344.76/x - Step 3: Cross multiply
86,290,578.84x = 119,080,211.63 × 47,132,344.76 - Step 4: Simplify right side
86,290,578.84x = 5,612,529,587,807,859 - Step 5: Solve for x
x = 5,612,529,587,807,859/86,290,578.84 - Step 6: Final answer
x = 65,042,205.80
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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.