Finding the Fourth Proportional to 293,419,442.40, 440,129,163.60 and 157,370,546.40
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Solution
The fourth proportional to 293,419,442.40, 440,129,163.60 and 157,370,546.40 is: 236,055,819.60
Step by Step Solution
- Step 1: Write the proportion equation
293,419,442.40 : 440,129,163.60 = 157,370,546.40 : x - Step 2: Convert to fraction form
293,419,442.40/440,129,163.60 = 157,370,546.40/x - Step 3: Cross multiply
293,419,442.40x = 440,129,163.60 × 157,370,546.40 - Step 4: Simplify right side
293,419,442.40x = 69,263,366,962,307,000 - Step 5: Solve for x
x = 69,263,366,962,307,000/293,419,442.40 - Step 6: Final answer
x = 236,055,819.60
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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.