Finding the Fourth Proportional to 121,568,084,638.88, 167,763,972,703.74 and 67,378,131,798.68
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Solution
The fourth proportional to 121,568,084,638.88, 167,763,972,703.74 and 67,378,131,798.68 is: 92,981,830,695.78
Step by Step Solution
- Step 1: Write the proportion equation
121,568,084,638.88 : 167,763,972,703.74 = 67,378,131,798.68 : x - Step 2: Convert to fraction form
121,568,084,638.88/167,763,972,703.74 = 67,378,131,798.68/x - Step 3: Cross multiply
121,568,084,638.88x = 167,763,972,703.74 × 67,378,131,798.68 - Step 4: Simplify right side
121,568,084,638.88x = 11,303,623,063,902,747,623,424 - Step 5: Solve for x
x = 11,303,623,063,902,747,623,424/121,568,084,638.88 - Step 6: Final answer
x = 92,981,830,695.78
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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.