Finding the Fourth Proportional to 20,910,558.11, 31,353,658.26 and 8,116,116.03
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Solution
The fourth proportional to 20,910,558.11, 31,353,658.26 and 8,116,116.03 is: 12,169,446.99
Step by Step Solution
- Step 1: Write the proportion equation
20,910,558.11 : 31,353,658.26 = 8,116,116.03 : x - Step 2: Convert to fraction form
20,910,558.11/31,353,658.26 = 8,116,116.03/x - Step 3: Cross multiply
20,910,558.11x = 31,353,658.26 × 8,116,116.03 - Step 4: Simplify right side
20,910,558.11x = 254,469,928,403,127.94 - Step 5: Solve for x
x = 254,469,928,403,127.94/20,910,558.11 - Step 6: Final answer
x = 12,169,446.99
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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.