Finding the Fourth Proportional to 12,117,620.35, 18,176,430.53 and 8,291,245.15
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Solution
The fourth proportional to 12,117,620.35, 18,176,430.53 and 8,291,245.15 is: 12,436,867.73
Step by Step Solution
- Step 1: Write the proportion equation
12,117,620.35 : 18,176,430.53 = 8,291,245.15 : x - Step 2: Convert to fraction form
12,117,620.35/18,176,430.53 = 8,291,245.15/x - Step 3: Cross multiply
12,117,620.35x = 18,176,430.53 × 8,291,245.15 - Step 4: Simplify right side
12,117,620.35x = 150,705,241,476,174.44 - Step 5: Solve for x
x = 150,705,241,476,174.44/12,117,620.35 - Step 6: Final answer
x = 12,436,867.73
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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.