Finding the Fourth Proportional to 126,819,861.42, 189,906,857.46 and 83,557,906.68
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Solution
The fourth proportional to 126,819,861.42, 189,906,857.46 and 83,557,906.68 is: 125,124,087.79
Step by Step Solution
- Step 1: Write the proportion equation
126,819,861.42 : 189,906,857.46 = 83,557,906.68 : x - Step 2: Convert to fraction form
126,819,861.42/189,906,857.46 = 83,557,906.68/x - Step 3: Cross multiply
126,819,861.42x = 189,906,857.46 × 83,557,906.68 - Step 4: Simplify right side
126,819,861.42x = 15,868,219,473,534,744 - Step 5: Solve for x
x = 15,868,219,473,534,744/126,819,861.42 - Step 6: Final answer
x = 125,124,087.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.