Finding the Fourth Proportional to 11,270,940, 15,553,897.20 and 6,442,147.68
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Solution
The fourth proportional to 11,270,940, 15,553,897.20 and 6,442,147.68 is: 8,890,163.80
Step by Step Solution
- Step 1: Write the proportion equation
11,270,940 : 15,553,897.20 = 6,442,147.68 : x - Step 2: Convert to fraction form
11,270,940/15,553,897.20 = 6,442,147.68/x - Step 3: Cross multiply
11,270,940x = 15,553,897.20 × 6,442,147.68 - Step 4: Simplify right side
11,270,940x = 100,200,502,761,938.48 - Step 5: Solve for x
x = 100,200,502,761,938.48/11,270,940 - Step 6: Final answer
x = 8,890,163.80
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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.