Finding the Fourth Proportional to 203,796,415.20, 305,713,285.20 and 82,602,789.60
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Solution
The fourth proportional to 203,796,415.20, 305,713,285.20 and 82,602,789.60 is: 123,911,748.65
Step by Step Solution
- Step 1: Write the proportion equation
203,796,415.20 : 305,713,285.20 = 82,602,789.60 : x - Step 2: Convert to fraction form
203,796,415.20/305,713,285.20 = 82,602,789.60/x - Step 3: Cross multiply
203,796,415.20x = 305,713,285.20 × 82,602,789.60 - Step 4: Simplify right side
203,796,415.20x = 25,252,770,175,300,392 - Step 5: Solve for x
x = 25,252,770,175,300,392/203,796,415.20 - Step 6: Final answer
x = 123,911,748.65
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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.