Finding the Fourth Proportional to 1,057,542,406.60, 1,586,313,609.90 and 853,469,062.60
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Solution
The fourth proportional to 1,057,542,406.60, 1,586,313,609.90 and 853,469,062.60 is: 1,280,203,593.90
Step by Step Solution
- Step 1: Write the proportion equation
1,057,542,406.60 : 1,586,313,609.90 = 853,469,062.60 : x - Step 2: Convert to fraction form
1,057,542,406.60/1,586,313,609.90 = 853,469,062.60/x - Step 3: Cross multiply
1,057,542,406.60x = 1,586,313,609.90 × 853,469,062.60 - Step 4: Simplify right side
1,057,542,406.60x = 1,353,869,589,630,975,232 - Step 5: Solve for x
x = 1,353,869,589,630,975,232/1,057,542,406.60 - Step 6: Final answer
x = 1,280,203,593.90
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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.