Finding the Fourth Proportional to 257,451,879.35, 355,295,739.80 and 145,944,881.34
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Solution
The fourth proportional to 257,451,879.35, 355,295,739.80 and 145,944,881.34 is: 201,410,821.77
Step by Step Solution
- Step 1: Write the proportion equation
257,451,879.35 : 355,295,739.80 = 145,944,881.34 : x - Step 2: Convert to fraction form
257,451,879.35/355,295,739.80 = 145,944,881.34/x - Step 3: Cross multiply
257,451,879.35x = 355,295,739.80 × 145,944,881.34 - Step 4: Simplify right side
257,451,879.35x = 51,853,594,586,083,384 - Step 5: Solve for x
x = 51,853,594,586,083,384/257,451,879.35 - Step 6: Final answer
x = 201,410,821.77
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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.