Finding the Fourth Proportional to 11,467,879.22, 15,824,857.74 and 6,821,408.18
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Solution
The fourth proportional to 11,467,879.22, 15,824,857.74 and 6,821,408.18 is: 9,413,058.16
Step by Step Solution
- Step 1: Write the proportion equation
11,467,879.22 : 15,824,857.74 = 6,821,408.18 : x - Step 2: Convert to fraction form
11,467,879.22/15,824,857.74 = 6,821,408.18/x - Step 3: Cross multiply
11,467,879.22x = 15,824,857.74 × 6,821,408.18 - Step 4: Simplify right side
11,467,879.22x = 107,947,814,034,972.31 - Step 5: Solve for x
x = 107,947,814,034,972.31/11,467,879.22 - Step 6: Final answer
x = 9,413,058.16
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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.