Finding the Fourth Proportional to 11,639,742.80, 16,062,849.50 and 6,747,800.72
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Solution
The fourth proportional to 11,639,742.80, 16,062,849.50 and 6,747,800.72 is: 9,311,967.56
Step by Step Solution
- Step 1: Write the proportion equation
11,639,742.80 : 16,062,849.50 = 6,747,800.72 : x - Step 2: Convert to fraction form
11,639,742.80/16,062,849.50 = 6,747,800.72/x - Step 3: Cross multiply
11,639,742.80x = 16,062,849.50 × 6,747,800.72 - Step 4: Simplify right side
11,639,742.80x = 108,388,907,307,298.38 - Step 5: Solve for x
x = 108,388,907,307,298.38/11,639,742.80 - Step 6: Final answer
x = 9,311,967.56
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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.