Finding the Fourth Proportional to 20,746,174.40, 31,119,261.60 and 7,284,363.20
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Solution
The fourth proportional to 20,746,174.40, 31,119,261.60 and 7,284,363.20 is: 10,926,544.80
Step by Step Solution
- Step 1: Write the proportion equation
20,746,174.40 : 31,119,261.60 = 7,284,363.20 : x - Step 2: Convert to fraction form
20,746,174.40/31,119,261.60 = 7,284,363.20/x - Step 3: Cross multiply
20,746,174.40x = 31,119,261.60 × 7,284,363.20 - Step 4: Simplify right side
20,746,174.40x = 226,684,004,010,213.12 - Step 5: Solve for x
x = 226,684,004,010,213.12/20,746,174.40 - Step 6: Final answer
x = 10,926,544.80
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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.