Finding the Fourth Proportional to 20,915,246.23, 28,863,739.86 and 11,623,207.94
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Solution
The fourth proportional to 20,915,246.23, 28,863,739.86 and 11,623,207.94 is: 16,040,416.00
Step by Step Solution
- Step 1: Write the proportion equation
20,915,246.23 : 28,863,739.86 = 11,623,207.94 : x - Step 2: Convert to fraction form
20,915,246.23/28,863,739.86 = 11,623,207.94/x - Step 3: Cross multiply
20,915,246.23x = 28,863,739.86 × 11,623,207.94 - Step 4: Simplify right side
20,915,246.23x = 335,489,250,318,846.44 - Step 5: Solve for x
x = 335,489,250,318,846.44/20,915,246.23 - Step 6: Final answer
x = 16,040,416.00
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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.