Finding the Fourth Proportional to 11,078,739.45, 15,291,211.37 and 6,496,537.05
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Solution
The fourth proportional to 11,078,739.45, 15,291,211.37 and 6,496,537.05 is: 8,966,716.98
Step by Step Solution
- Step 1: Write the proportion equation
11,078,739.45 : 15,291,211.37 = 6,496,537.05 : x - Step 2: Convert to fraction form
11,078,739.45/15,291,211.37 = 6,496,537.05/x - Step 3: Cross multiply
11,078,739.45x = 15,291,211.37 × 6,496,537.05 - Step 4: Simplify right side
11,078,739.45x = 99,339,921,172,103.58 - Step 5: Solve for x
x = 99,339,921,172,103.58/11,078,739.45 - Step 6: Final answer
x = 8,966,716.98
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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.