Finding the Fourth Proportional to 738,320,868.30, 1,107,397,321.65 and 193,117,514.70
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Solution
The fourth proportional to 738,320,868.30, 1,107,397,321.65 and 193,117,514.70 is: 289,654,305.77
Step by Step Solution
- Step 1: Write the proportion equation
738,320,868.30 : 1,107,397,321.65 = 193,117,514.70 : x - Step 2: Convert to fraction form
738,320,868.30/1,107,397,321.65 = 193,117,514.70/x - Step 3: Cross multiply
738,320,868.30x = 1,107,397,321.65 × 193,117,514.70 - Step 4: Simplify right side
738,320,868.30x = 213,857,818,542,484,512 - Step 5: Solve for x
x = 213,857,818,542,484,512/738,320,868.30 - Step 6: Final answer
x = 289,654,305.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.