Finding the Fourth Proportional to 13,166,640.99, 18,171,471.56 and 7,366,891.95
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Solution
The fourth proportional to 13,166,640.99, 18,171,471.56 and 7,366,891.95 is: 10,167,154.07
Step by Step Solution
- Step 1: Write the proportion equation
13,166,640.99 : 18,171,471.56 = 7,366,891.95 : x - Step 2: Convert to fraction form
13,166,640.99/18,171,471.56 = 7,366,891.95/x - Step 3: Cross multiply
13,166,640.99x = 18,171,471.56 × 7,366,891.95 - Step 4: Simplify right side
13,166,640.99x = 133,867,267,518,183.48 - Step 5: Solve for x
x = 133,867,267,518,183.48/13,166,640.99 - Step 6: Final answer
x = 10,167,154.07
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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.