Finding the Fourth Proportional to 126,194,611.80, 189,291,917.70 and 126,194,611.80
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Solution
The fourth proportional to 126,194,611.80, 189,291,917.70 and 126,194,611.80 is: 189,291,917.70
Step by Step Solution
- Step 1: Write the proportion equation
126,194,611.80 : 189,291,917.70 = 126,194,611.80 : x - Step 2: Convert to fraction form
126,194,611.80/189,291,917.70 = 126,194,611.80/x - Step 3: Cross multiply
126,194,611.80x = 189,291,917.70 × 126,194,611.80 - Step 4: Simplify right side
126,194,611.80x = 23,887,620,071,029,048 - Step 5: Solve for x
x = 23,887,620,071,029,048/126,194,611.80 - Step 6: Final answer
x = 189,291,917.70
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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.