Finding the Fourth Proportional to 18,522,425.40, 27,783,638.10 and 5,744,221.80
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Solution
The fourth proportional to 18,522,425.40, 27,783,638.10 and 5,744,221.80 is: 8,616,332.70
Step by Step Solution
- Step 1: Write the proportion equation
18,522,425.40 : 27,783,638.10 = 5,744,221.80 : x - Step 2: Convert to fraction form
18,522,425.40/27,783,638.10 = 5,744,221.80/x - Step 3: Cross multiply
18,522,425.40x = 27,783,638.10 × 5,744,221.80 - Step 4: Simplify right side
18,522,425.40x = 159,595,379,657,330.59 - Step 5: Solve for x
x = 159,595,379,657,330.59/18,522,425.40 - Step 6: Final answer
x = 8,616,332.70
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1.5x scale
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.