Finding the Fourth Proportional to 14,919,281.92, 20,588,578.68 and 8,392,916.08
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Solution
The fourth proportional to 14,919,281.92, 20,588,578.68 and 8,392,916.08 is: 11,582,207.11
Step by Step Solution
- Step 1: Write the proportion equation
14,919,281.92 : 20,588,578.68 = 8,392,916.08 : x - Step 2: Convert to fraction form
14,919,281.92/20,588,578.68 = 8,392,916.08/x - Step 3: Cross multiply
14,919,281.92x = 20,588,578.68 × 8,392,916.08 - Step 4: Simplify right side
14,919,281.92x = 172,798,213,067,717.19 - Step 5: Solve for x
x = 172,798,213,067,717.19/14,919,281.92 - Step 6: Final answer
x = 11,582,207.11
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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.