Finding the Fourth Proportional to 6,465,186.59, 8,912,687.21 and 5,086,135.09
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Solution
The fourth proportional to 6,465,186.59, 8,912,687.21 and 5,086,135.09 is: 7,011,573.54
Step by Step Solution
- Step 1: Write the proportion equation
6,465,186.59 : 8,912,687.21 = 5,086,135.09 : x - Step 2: Convert to fraction form
6,465,186.59/8,912,687.21 = 5,086,135.09/x - Step 3: Cross multiply
6,465,186.59x = 8,912,687.21 × 5,086,135.09 - Step 4: Simplify right side
6,465,186.59x = 45,331,131,169,758.38 - Step 5: Solve for x
x = 45,331,131,169,758.38/6,465,186.59 - Step 6: Final answer
x = 7,011,573.54
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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.