Finding the Fourth Proportional to 121,568,084,651.07, 167,763,972,720.64 and 67,378,131,810.99
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Solution
The fourth proportional to 121,568,084,651.07, 167,763,972,720.64 and 67,378,131,810.99 is: 92,981,830,712.81
Step by Step Solution
- Step 1: Write the proportion equation
121,568,084,651.07 : 167,763,972,720.64 = 67,378,131,810.99 : x - Step 2: Convert to fraction form
121,568,084,651.07/167,763,972,720.64 = 67,378,131,810.99/x - Step 3: Cross multiply
121,568,084,651.07x = 167,763,972,720.64 × 67,378,131,810.99 - Step 4: Simplify right side
121,568,084,651.07x = 11,303,623,067,106,612,871,168 - Step 5: Solve for x
x = 11,303,623,067,106,612,871,168/121,568,084,651.07 - Step 6: Final answer
x = 92,981,830,712.81
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1.5x scale
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.