Finding the Fourth Proportional to 20,286,320.17, 27,995,798.87 and 11,118,986.41
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Solution
The fourth proportional to 20,286,320.17, 27,995,798.87 and 11,118,986.41 is: 15,344,572.33
Step by Step Solution
- Step 1: Write the proportion equation
20,286,320.17 : 27,995,798.87 = 11,118,986.41 : x - Step 2: Convert to fraction form
20,286,320.17/27,995,798.87 = 11,118,986.41/x - Step 3: Cross multiply
20,286,320.17x = 27,995,798.87 × 11,118,986.41 - Step 4: Simplify right side
20,286,320.17x = 311,284,907,117,028.44 - Step 5: Solve for x
x = 311,284,907,117,028.44/20,286,320.17 - Step 6: Final answer
x = 15,344,572.33
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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.