Finding the Fourth Proportional to 227,082,748.12, 313,374,144 and 122,660,820.52
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Solution
The fourth proportional to 227,082,748.12, 313,374,144 and 122,660,820.52 is: 169,271,906.17
Step by Step Solution
- Step 1: Write the proportion equation
227,082,748.12 : 313,374,144 = 122,660,820.52 : x - Step 2: Convert to fraction form
227,082,748.12/313,374,144 = 122,660,820.52/x - Step 3: Cross multiply
227,082,748.12x = 313,374,144 × 122,660,820.52 - Step 4: Simplify right side
227,082,748.12x = 38,438,729,632,792,632 - Step 5: Solve for x
x = 38,438,729,632,792,632/227,082,748.12 - Step 6: Final answer
x = 169,271,906.17
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1.5x scale
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.