Finding the Fourth Proportional to 18,668,715.70, 27,969,895.95 and 16,014,507.70
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Solution
The fourth proportional to 18,668,715.70, 27,969,895.95 and 16,014,507.70 is: 23,993,300.95
Step by Step Solution
- Step 1: Write the proportion equation
18,668,715.70 : 27,969,895.95 = 16,014,507.70 : x - Step 2: Convert to fraction form
18,668,715.70/27,969,895.95 = 16,014,507.70/x - Step 3: Cross multiply
18,668,715.70x = 27,969,895.95 × 16,014,507.70 - Step 4: Simplify right side
18,668,715.70x = 447,924,114,059,473.81 - Step 5: Solve for x
x = 447,924,114,059,473.81/18,668,715.70 - Step 6: Final answer
x = 23,993,300.95
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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.