Finding the Fourth Proportional to 205,908,107.40, 284,194,431.49 and 122,322,672.49
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Solution
The fourth proportional to 205,908,107.40, 284,194,431.49 and 122,322,672.49 is: 168,829,789.20
Step by Step Solution
- Step 1: Write the proportion equation
205,908,107.40 : 284,194,431.49 = 122,322,672.49 : x - Step 2: Convert to fraction form
205,908,107.40/284,194,431.49 = 122,322,672.49/x - Step 3: Cross multiply
205,908,107.40x = 284,194,431.49 × 122,322,672.49 - Step 4: Simplify right side
205,908,107.40x = 34,763,422,367,558,636 - Step 5: Solve for x
x = 34,763,422,367,558,636/205,908,107.40 - Step 6: Final answer
x = 168,829,789.20
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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.