Finding the Fourth Proportional to 21,437,438.12, 29,583,774.03 and 11,647,907.31
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Solution
The fourth proportional to 21,437,438.12, 29,583,774.03 and 11,647,907.31 is: 16,074,171.55
Step by Step Solution
- Step 1: Write the proportion equation
21,437,438.12 : 29,583,774.03 = 11,647,907.31 : x - Step 2: Convert to fraction form
21,437,438.12/29,583,774.03 = 11,647,907.31/x - Step 3: Cross multiply
21,437,438.12x = 29,583,774.03 × 11,647,907.31 - Step 4: Simplify right side
21,437,438.12x = 344,589,057,781,425.19 - Step 5: Solve for x
x = 344,589,057,781,425.19/21,437,438.12 - Step 6: Final answer
x = 16,074,171.55
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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.