Finding the Fourth Proportional to 11,296,465.20, 15,589,279.80 and 6,139,825.20
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Solution
The fourth proportional to 11,296,465.20, 15,589,279.80 and 6,139,825.20 is: 8,473,044.56
Step by Step Solution
- Step 1: Write the proportion equation
11,296,465.20 : 15,589,279.80 = 6,139,825.20 : x - Step 2: Convert to fraction form
11,296,465.20/15,589,279.80 = 6,139,825.20/x - Step 3: Cross multiply
11,296,465.20x = 15,589,279.80 × 6,139,825.20 - Step 4: Simplify right side
11,296,465.20x = 95,715,452,965,890.97 - Step 5: Solve for x
x = 95,715,452,965,890.97/11,296,465.20 - Step 6: Final answer
x = 8,473,044.56
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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.