Finding the Fourth Proportional to 278,480,213.76, 384,218,889.57 and 166,930,353.42
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Solution
The fourth proportional to 278,480,213.76, 384,218,889.57 and 166,930,353.42 is: 230,313,651.95
Step by Step Solution
- Step 1: Write the proportion equation
278,480,213.76 : 384,218,889.57 = 166,930,353.42 : x - Step 2: Convert to fraction form
278,480,213.76/384,218,889.57 = 166,930,353.42/x - Step 3: Cross multiply
278,480,213.76x = 384,218,889.57 × 166,930,353.42 - Step 4: Simplify right side
278,480,213.76x = 64,137,795,026,560,048 - Step 5: Solve for x
x = 64,137,795,026,560,048/278,480,213.76 - Step 6: Final answer
x = 230,313,651.95
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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.