Finding the Fourth Proportional to 17,272,408.40, 25,908,612.60 and 5,305,125.20
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Solution
The fourth proportional to 17,272,408.40, 25,908,612.60 and 5,305,125.20 is: 7,957,687.80
Step by Step Solution
- Step 1: Write the proportion equation
17,272,408.40 : 25,908,612.60 = 5,305,125.20 : x - Step 2: Convert to fraction form
17,272,408.40/25,908,612.60 = 5,305,125.20/x - Step 3: Cross multiply
17,272,408.40x = 25,908,612.60 × 5,305,125.20 - Step 4: Simplify right side
17,272,408.40x = 137,448,433,601,297.53 - Step 5: Solve for x
x = 137,448,433,601,297.53/17,272,408.40 - Step 6: Final answer
x = 7,957,687.80
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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.