Finding the Fourth Proportional to 256,286,737.12, 353,673,554.16 and 138,809,339.68
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Solution
The fourth proportional to 256,286,737.12, 353,673,554.16 and 138,809,339.68 is: 191,555,728.04
Step by Step Solution
- Step 1: Write the proportion equation
256,286,737.12 : 353,673,554.16 = 138,809,339.68 : x - Step 2: Convert to fraction form
256,286,737.12/353,673,554.16 = 138,809,339.68/x - Step 3: Cross multiply
256,286,737.12x = 353,673,554.16 × 138,809,339.68 - Step 4: Simplify right side
256,286,737.12x = 49,093,192,515,228,320 - Step 5: Solve for x
x = 49,093,192,515,228,320/256,286,737.12 - Step 6: Final answer
x = 191,555,728.04
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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.