Finding the Fourth Proportional to 3,519,861,795.28, 4,856,207,945.47 and 2,181,263,471.65
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Solution
The fourth proportional to 3,519,861,795.28, 4,856,207,945.47 and 2,181,263,471.65 is: 3,009,399,123.68
Step by Step Solution
- Step 1: Write the proportion equation
3,519,861,795.28 : 4,856,207,945.47 = 2,181,263,471.65 : x - Step 2: Convert to fraction form
3,519,861,795.28/4,856,207,945.47 = 2,181,263,471.65/x - Step 3: Cross multiply
3,519,861,795.28x = 4,856,207,945.47 × 2,181,263,471.65 - Step 4: Simplify right side
3,519,861,795.28x = 10,592,669,002,190,206,976 - Step 5: Solve for x
x = 10,592,669,002,190,206,976/3,519,861,795.28 - Step 6: Final answer
x = 3,009,399,123.68
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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.