Finding the Fourth Proportional to 8,126,381.53, 11,214,421.49 and 4,405,201.03
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Solution
The fourth proportional to 8,126,381.53, 11,214,421.49 and 4,405,201.03 is: 6,079,185.54
Step by Step Solution
- Step 1: Write the proportion equation
8,126,381.53 : 11,214,421.49 = 4,405,201.03 : x - Step 2: Convert to fraction form
8,126,381.53/11,214,421.49 = 4,405,201.03/x - Step 3: Cross multiply
8,126,381.53x = 11,214,421.49 × 4,405,201.03 - Step 4: Simplify right side
8,126,381.53x = 49,401,781,081,579.08 - Step 5: Solve for x
x = 49,401,781,081,579.08/8,126,381.53 - Step 6: Final answer
x = 6,079,185.54
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1.5x scale
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.