Finding the Fourth Proportional to 19,486,571.40, 29,229,857.10 and 18,702,750.60
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Solution
The fourth proportional to 19,486,571.40, 29,229,857.10 and 18,702,750.60 is: 28,054,125.90
Step by Step Solution
- Step 1: Write the proportion equation
19,486,571.40 : 29,229,857.10 = 18,702,750.60 : x - Step 2: Convert to fraction form
19,486,571.40/29,229,857.10 = 18,702,750.60/x - Step 3: Cross multiply
19,486,571.40x = 29,229,857.10 × 18,702,750.60 - Step 4: Simplify right side
19,486,571.40x = 546,678,727,414,939.31 - Step 5: Solve for x
x = 546,678,727,414,939.31/19,486,571.40 - Step 6: Final answer
x = 28,054,125.90
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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.