Finding the Fourth Proportional to 12,269,158.09, 16,930,442.68 and 7,112,851.79
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Solution
The fourth proportional to 12,269,158.09, 16,930,442.68 and 7,112,851.79 is: 9,815,158.35
Step by Step Solution
- Step 1: Write the proportion equation
12,269,158.09 : 16,930,442.68 = 7,112,851.79 : x - Step 2: Convert to fraction form
12,269,158.09/16,930,442.68 = 7,112,851.79/x - Step 3: Cross multiply
12,269,158.09x = 16,930,442.68 × 7,112,851.79 - Step 4: Simplify right side
12,269,158.09x = 120,423,729,419,496.05 - Step 5: Solve for x
x = 120,423,729,419,496.05/12,269,158.09 - Step 6: Final answer
x = 9,815,158.35
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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.