Finding the Fourth Proportional to 126,029,231.70, 189,043,847.55 and 49,326,767.70
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Solution
The fourth proportional to 126,029,231.70, 189,043,847.55 and 49,326,767.70 is: 73,990,151.55
Step by Step Solution
- Step 1: Write the proportion equation
126,029,231.70 : 189,043,847.55 = 49,326,767.70 : x - Step 2: Convert to fraction form
126,029,231.70/189,043,847.55 = 49,326,767.70/x - Step 3: Cross multiply
126,029,231.70x = 189,043,847.55 × 49,326,767.70 - Step 4: Simplify right side
126,029,231.70x = 9,324,921,953,213,066 - Step 5: Solve for x
x = 9,324,921,953,213,066/126,029,231.70 - Step 6: Final answer
x = 73,990,151.55
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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.