Finding the Fourth Proportional to 160,659,958.05, 221,715,418.77 and 91,043,024.13
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Solution
The fourth proportional to 160,659,958.05, 221,715,418.77 and 91,043,024.13 is: 125,642,023.48
Step by Step Solution
- Step 1: Write the proportion equation
160,659,958.05 : 221,715,418.77 = 91,043,024.13 : x - Step 2: Convert to fraction form
160,659,958.05/221,715,418.77 = 91,043,024.13/x - Step 3: Cross multiply
160,659,958.05x = 221,715,418.77 × 91,043,024.13 - Step 4: Simplify right side
160,659,958.05x = 20,185,642,221,070,164 - Step 5: Solve for x
x = 20,185,642,221,070,164/160,659,958.05 - Step 6: Final answer
x = 125,642,023.48
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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.