Finding the Fourth Proportional to 11,278,047.36, 15,563,665.92 and 6,121,408.80
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Solution
The fourth proportional to 11,278,047.36, 15,563,665.92 and 6,121,408.80 is: 8,447,522.74
Step by Step Solution
- Step 1: Write the proportion equation
11,278,047.36 : 15,563,665.92 = 6,121,408.80 : x - Step 2: Convert to fraction form
11,278,047.36/15,563,665.92 = 6,121,408.80/x - Step 3: Cross multiply
11,278,047.36x = 15,563,665.92 × 6,121,408.80 - Step 4: Simplify right side
11,278,047.36x = 95,271,561,522,948.09 - Step 5: Solve for x
x = 95,271,561,522,948.09/11,278,047.36 - Step 6: Final answer
x = 8,447,522.74
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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.