Finding the Fourth Proportional to 84,574,469.80, 126,861,704.70 and 82,448,705.80
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Solution
The fourth proportional to 84,574,469.80, 126,861,704.70 and 82,448,705.80 is: 123,673,058.70
Step by Step Solution
- Step 1: Write the proportion equation
84,574,469.80 : 126,861,704.70 = 82,448,705.80 : x - Step 2: Convert to fraction form
84,574,469.80/126,861,704.70 = 82,448,705.80/x - Step 3: Cross multiply
84,574,469.80x = 126,861,704.70 × 82,448,705.80 - Step 4: Simplify right side
84,574,469.80x = 10,459,583,368,096,778 - Step 5: Solve for x
x = 10,459,583,368,096,778/84,574,469.80 - Step 6: Final answer
x = 123,673,058.70
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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.