Finding the Fourth Proportional to 28,828,087.62, 39,782,757.09 and 15,775,348.08
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Solution
The fourth proportional to 28,828,087.62, 39,782,757.09 and 15,775,348.08 is: 21,769,978.26
Step by Step Solution
- Step 1: Write the proportion equation
28,828,087.62 : 39,782,757.09 = 15,775,348.08 : x - Step 2: Convert to fraction form
28,828,087.62/39,782,757.09 = 15,775,348.08/x - Step 3: Cross multiply
28,828,087.62x = 39,782,757.09 × 15,775,348.08 - Step 4: Simplify right side
28,828,087.62x = 627,586,840,676,838 - Step 5: Solve for x
x = 627,586,840,676,838/28,828,087.62 - Step 6: Final answer
x = 21,769,978.26
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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.