Finding the Fourth Proportional to 14,993,945.36, 20,691,654.40 and 8,118,432.08
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Solution
The fourth proportional to 14,993,945.36, 20,691,654.40 and 8,118,432.08 is: 11,203,441.58
Step by Step Solution
- Step 1: Write the proportion equation
14,993,945.36 : 20,691,654.40 = 8,118,432.08 : x - Step 2: Convert to fraction form
14,993,945.36/20,691,654.40 = 8,118,432.08/x - Step 3: Cross multiply
14,993,945.36x = 20,691,654.40 × 8,118,432.08 - Step 4: Simplify right side
14,993,945.36x = 167,983,790,869,233.16 - Step 5: Solve for x
x = 167,983,790,869,233.16/14,993,945.36 - Step 6: Final answer
x = 11,203,441.58
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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.