Finding the Fourth Proportional to 257,451,877.85, 355,295,737.73 and 145,944,879.84
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Solution
The fourth proportional to 257,451,877.85, 355,295,737.73 and 145,944,879.84 is: 201,410,819.70
Step by Step Solution
- Step 1: Write the proportion equation
257,451,877.85 : 355,295,737.73 = 145,944,879.84 : x - Step 2: Convert to fraction form
257,451,877.85/355,295,737.73 = 145,944,879.84/x - Step 3: Cross multiply
257,451,877.85x = 355,295,737.73 × 145,944,879.84 - Step 4: Simplify right side
257,451,877.85x = 51,853,593,751,033,872 - Step 5: Solve for x
x = 51,853,593,751,033,872/257,451,877.85 - Step 6: Final answer
x = 201,410,819.70
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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.