Finding the Fourth Proportional to 20,411,207.62, 30,620,578.47 and 8,444,876.74
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Solution
The fourth proportional to 20,411,207.62, 30,620,578.47 and 8,444,876.74 is: 12,668,873.67
Step by Step Solution
- Step 1: Write the proportion equation
20,411,207.62 : 30,620,578.47 = 8,444,876.74 : x - Step 2: Convert to fraction form
20,411,207.62/30,620,578.47 = 8,444,876.74/x - Step 3: Cross multiply
20,411,207.62x = 30,620,578.47 × 8,444,876.74 - Step 4: Simplify right side
20,411,207.62x = 258,587,010,886,647.78 - Step 5: Solve for x
x = 258,587,010,886,647.78/20,411,207.62 - Step 6: Final answer
x = 12,668,873.67
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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.