Finding the Fourth Proportional to 28,546,840, 39,394,682.49 and 15,494,103.69
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Solution
The fourth proportional to 28,546,840, 39,394,682.49 and 15,494,103.69 is: 21,381,886.59
Step by Step Solution
- Step 1: Write the proportion equation
28,546,840 : 39,394,682.49 = 15,494,103.69 : x - Step 2: Convert to fraction form
28,546,840/39,394,682.49 = 15,494,103.69/x - Step 3: Cross multiply
28,546,840x = 39,394,682.49 × 15,494,103.69 - Step 4: Simplify right side
28,546,840x = 610,385,295,334,687.38 - Step 5: Solve for x
x = 610,385,295,334,687.38/28,546,840 - Step 6: Final answer
x = 21,381,886.59
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1.5x scale
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.