Finding the Fourth Proportional to 20,463,617.76, 28,239,860.16 and 11,296,238.64
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Solution
The fourth proportional to 20,463,617.76, 28,239,860.16 and 11,296,238.64 is: 15,588,846.67
Step by Step Solution
- Step 1: Write the proportion equation
20,463,617.76 : 28,239,860.16 = 11,296,238.64 : x - Step 2: Convert to fraction form
20,463,617.76/28,239,860.16 = 11,296,238.64/x - Step 3: Cross multiply
20,463,617.76x = 28,239,860.16 × 11,296,238.64 - Step 4: Simplify right side
20,463,617.76x = 319,004,199,527,588.62 - Step 5: Solve for x
x = 319,004,199,527,588.62/20,463,617.76 - Step 6: Final answer
x = 15,588,846.67
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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.