Finding the Fourth Proportional to 18,630,894.96, 25,705,472.04 and 11,186,623.44
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Solution
The fourth proportional to 18,630,894.96, 25,705,472.04 and 11,186,623.44 is: 15,434,440.30
Step by Step Solution
- Step 1: Write the proportion equation
18,630,894.96 : 25,705,472.04 = 11,186,623.44 : x - Step 2: Convert to fraction form
18,630,894.96/25,705,472.04 = 11,186,623.44/x - Step 3: Cross multiply
18,630,894.96x = 25,705,472.04 × 11,186,623.44 - Step 4: Simplify right side
18,630,894.96x = 287,557,436,058,928.62 - Step 5: Solve for x
x = 287,557,436,058,928.62/18,630,894.96 - Step 6: Final answer
x = 15,434,440.30
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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.