Finding the Fourth Proportional to 227,138,285.05, 313,451,055.13 and 122,716,439.41
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Solution
The fourth proportional to 227,138,285.05, 313,451,055.13 and 122,716,439.41 is: 169,348,806.20
Step by Step Solution
- Step 1: Write the proportion equation
227,138,285.05 : 313,451,055.13 = 122,716,439.41 : x - Step 2: Convert to fraction form
227,138,285.05/313,451,055.13 = 122,716,439.41/x - Step 3: Cross multiply
227,138,285.05x = 313,451,055.13 × 122,716,439.41 - Step 4: Simplify right side
227,138,285.05x = 38,465,597,414,861,216 - Step 5: Solve for x
x = 38,465,597,414,861,216/227,138,285.05 - Step 6: Final answer
x = 169,348,806.20
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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.