Finding the Fourth Proportional to 18,241,792.40, 27,344,640.60 and 8,640,294.80
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Solution
The fourth proportional to 18,241,792.40, 27,344,640.60 and 8,640,294.80 is: 12,951,893.70
Step by Step Solution
- Step 1: Write the proportion equation
18,241,792.40 : 27,344,640.60 = 8,640,294.80 : x - Step 2: Convert to fraction form
18,241,792.40/27,344,640.60 = 8,640,294.80/x - Step 3: Cross multiply
18,241,792.40x = 27,344,640.60 × 8,640,294.80 - Step 4: Simplify right side
18,241,792.40x = 236,265,755,984,048.91 - Step 5: Solve for x
x = 236,265,755,984,048.91/18,241,792.40 - Step 6: Final answer
x = 12,951,893.70
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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.