Finding the Fourth Proportional to 16,970,378.22, 23,419,649.97 and 9,628,520.79
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Solution
The fourth proportional to 16,970,378.22, 23,419,649.97 and 9,628,520.79 is: 13,287,658.28
Step by Step Solution
- Step 1: Write the proportion equation
16,970,378.22 : 23,419,649.97 = 9,628,520.79 : x - Step 2: Convert to fraction form
16,970,378.22/23,419,649.97 = 9,628,520.79/x - Step 3: Cross multiply
16,970,378.22x = 23,419,649.97 × 9,628,520.79 - Step 4: Simplify right side
16,970,378.22x = 225,496,586,630,667.84 - Step 5: Solve for x
x = 225,496,586,630,667.84/16,970,378.22 - Step 6: Final answer
x = 13,287,658.28
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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.