Finding the Fourth Proportional to 28,872,839.88, 43,311,922.14 and 9,442,166.70
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Solution
The fourth proportional to 28,872,839.88, 43,311,922.14 and 9,442,166.70 is: 14,164,120.70
Step by Step Solution
- Step 1: Write the proportion equation
28,872,839.88 : 43,311,922.14 = 9,442,166.70 : x - Step 2: Convert to fraction form
28,872,839.88/43,311,922.14 = 9,442,166.70/x - Step 3: Cross multiply
28,872,839.88x = 43,311,922.14 × 9,442,166.70 - Step 4: Simplify right side
28,872,839.88x = 408,958,388,943,300.69 - Step 5: Solve for x
x = 408,958,388,943,300.69/28,872,839.88 - Step 6: Final answer
x = 14,164,120.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.