Finding the Fourth Proportional to 28,471,287.92, 39,290,171.97 and 15,418,244.03
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Solution
The fourth proportional to 28,471,287.92, 39,290,171.97 and 15,418,244.03 is: 21,277,065.55
Step by Step Solution
- Step 1: Write the proportion equation
28,471,287.92 : 39,290,171.97 = 15,418,244.03 : x - Step 2: Convert to fraction form
28,471,287.92/39,290,171.97 = 15,418,244.03/x - Step 3: Cross multiply
28,471,287.92x = 39,290,171.97 × 15,418,244.03 - Step 4: Simplify right side
28,471,287.92x = 605,785,459,512,351.25 - Step 5: Solve for x
x = 605,785,459,512,351.25/28,471,287.92 - Step 6: Final answer
x = 21,277,065.55
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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.