Finding the Fourth Proportional to 20,464,531.34, 28,240,880.02 and 11,296,977.26
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Solution
The fourth proportional to 20,464,531.34, 28,240,880.02 and 11,296,977.26 is: 15,589,732.99
Step by Step Solution
- Step 1: Write the proportion equation
20,464,531.34 : 28,240,880.02 = 11,296,977.26 : x - Step 2: Convert to fraction form
20,464,531.34/28,240,880.02 = 11,296,977.26/x - Step 3: Cross multiply
20,464,531.34x = 28,240,880.02 × 11,296,977.26 - Step 4: Simplify right side
20,464,531.34x = 319,036,579,388,328.31 - Step 5: Solve for x
x = 319,036,579,388,328.31/20,464,531.34 - Step 6: Final answer
x = 15,589,732.99
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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.