Finding the Fourth Proportional to 227,086,071.64, 313,378,916.15 and 122,664,189.10
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Solution
The fourth proportional to 227,086,071.64, 313,378,916.15 and 122,664,189.10 is: 169,276,655.11
Step by Step Solution
- Step 1: Write the proportion equation
227,086,071.64 : 313,378,916.15 = 122,664,189.10 : x - Step 2: Convert to fraction form
227,086,071.64/313,378,916.15 = 122,664,189.10/x - Step 3: Cross multiply
227,086,071.64x = 313,378,916.15 × 122,664,189.10 - Step 4: Simplify right side
227,086,071.64x = 38,440,370,629,009,744 - Step 5: Solve for x
x = 38,440,370,629,009,744/227,086,071.64 - Step 6: Final answer
x = 169,276,655.11
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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.