Finding the Fourth Proportional to 3,876,346.09, 5,349,408.78 and 2,134,218.34
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Solution
The fourth proportional to 3,876,346.09, 5,349,408.78 and 2,134,218.34 is: 2,945,249.49
Step by Step Solution
- Step 1: Write the proportion equation
3,876,346.09 : 5,349,408.78 = 2,134,218.34 : x - Step 2: Convert to fraction form
3,876,346.09/5,349,408.78 = 2,134,218.34/x - Step 3: Cross multiply
3,876,346.09x = 5,349,408.78 × 2,134,218.34 - Step 4: Simplify right side
3,876,346.09x = 11,416,806,326,433.03 - Step 5: Solve for x
x = 11,416,806,326,433.03/3,876,346.09 - Step 6: Final answer
x = 2,945,249.49
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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.