Finding the Fourth Proportional to 345,741,478.06, 477,126,940.72 and 189,105,235.70
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Solution
The fourth proportional to 345,741,478.06, 477,126,940.72 and 189,105,235.70 is: 260,967,249.55
Step by Step Solution
- Step 1: Write the proportion equation
345,741,478.06 : 477,126,940.72 = 189,105,235.70 : x - Step 2: Convert to fraction form
345,741,478.06/477,126,940.72 = 189,105,235.70/x - Step 3: Cross multiply
345,741,478.06x = 477,126,940.72 × 189,105,235.70 - Step 4: Simplify right side
345,741,478.06x = 90,227,202,583,675,520 - Step 5: Solve for x
x = 90,227,202,583,675,520/345,741,478.06 - Step 6: Final answer
x = 260,967,249.55
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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.