Finding the Fourth Proportional to 28,546,837.75, 39,394,679.39 and 15,494,101.44
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Solution
The fourth proportional to 28,546,837.75, 39,394,679.39 and 15,494,101.44 is: 21,381,883.49
Step by Step Solution
- Step 1: Write the proportion equation
28,546,837.75 : 39,394,679.39 = 15,494,101.44 : x - Step 2: Convert to fraction form
28,546,837.75/39,394,679.39 = 15,494,101.44/x - Step 3: Cross multiply
28,546,837.75x = 39,394,679.39 × 15,494,101.44 - Step 4: Simplify right side
28,546,837.75x = 610,385,158,664,937.25 - Step 5: Solve for x
x = 610,385,158,664,937.25/28,546,837.75 - Step 6: Final answer
x = 21,381,883.49
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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.