Finding the Fourth Proportional to 20,226,720.20, 27,920,464.56 and 13,257,846.84
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Solution
The fourth proportional to 20,226,720.20, 27,920,464.56 and 13,257,846.84 is: 18,300,804.05
Step by Step Solution
- Step 1: Write the proportion equation
20,226,720.20 : 27,920,464.56 = 13,257,846.84 : x - Step 2: Convert to fraction form
20,226,720.20/27,920,464.56 = 13,257,846.84/x - Step 3: Cross multiply
20,226,720.20x = 27,920,464.56 × 13,257,846.84 - Step 4: Simplify right side
20,226,720.20x = 370,165,242,942,829.69 - Step 5: Solve for x
x = 370,165,242,942,829.69/20,226,720.20 - Step 6: Final answer
x = 18,300,804.05
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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.