Finding the Fourth Proportional to 98,085,213.68, 135,361,793.44 and 54,625,149.68
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Solution
The fourth proportional to 98,085,213.68, 135,361,793.44 and 54,625,149.68 is: 75,385,044.80
Step by Step Solution
- Step 1: Write the proportion equation
98,085,213.68 : 135,361,793.44 = 54,625,149.68 : x - Step 2: Convert to fraction form
98,085,213.68/135,361,793.44 = 54,625,149.68/x - Step 3: Cross multiply
98,085,213.68x = 135,361,793.44 × 54,625,149.68 - Step 4: Simplify right side
98,085,213.68x = 7,394,158,227,613,242 - Step 5: Solve for x
x = 7,394,158,227,613,242/98,085,213.68 - Step 6: Final answer
x = 75,385,044.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.