Finding the Fourth Proportional to 121,629,507.93, 167,851,431.29 and 69,417,496.40
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Solution
The fourth proportional to 121,629,507.93, 167,851,431.29 and 69,417,496.40 is: 95,797,691.90
Step by Step Solution
- Step 1: Write the proportion equation
121,629,507.93 : 167,851,431.29 = 69,417,496.40 : x - Step 2: Convert to fraction form
121,629,507.93/167,851,431.29 = 69,417,496.40/x - Step 3: Cross multiply
121,629,507.93x = 167,851,431.29 × 69,417,496.40 - Step 4: Simplify right side
121,629,507.93x = 11,651,826,126,642,708 - Step 5: Solve for x
x = 11,651,826,126,642,708/121,629,507.93 - Step 6: Final answer
x = 95,797,691.90
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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.