Finding the Fourth Proportional to 398,556,855.03, 550,008,695.84 and 222,344,850.99
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Solution
The fourth proportional to 398,556,855.03, 550,008,695.84 and 222,344,850.99 is: 306,836,025.97
Step by Step Solution
- Step 1: Write the proportion equation
398,556,855.03 : 550,008,695.84 = 222,344,850.99 : x - Step 2: Convert to fraction form
398,556,855.03/550,008,695.84 = 222,344,850.99/x - Step 3: Cross multiply
398,556,855.03x = 550,008,695.84 × 222,344,850.99 - Step 4: Simplify right side
398,556,855.03x = 122,291,601,518,637,328 - Step 5: Solve for x
x = 122,291,601,518,637,328/398,556,855.03 - Step 6: Final answer
x = 306,836,025.97
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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.