Finding the Fourth Proportional to 28,790,436.75, 39,721,101.67 and 16,391,757.35
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Solution
The fourth proportional to 28,790,436.75, 39,721,101.67 and 16,391,757.35 is: 22,615,101.88
Step by Step Solution
- Step 1: Write the proportion equation
28,790,436.75 : 39,721,101.67 = 16,391,757.35 : x - Step 2: Convert to fraction form
28,790,436.75/39,721,101.67 = 16,391,757.35/x - Step 3: Cross multiply
28,790,436.75x = 39,721,101.67 × 16,391,757.35 - Step 4: Simplify right side
28,790,436.75x = 651,098,660,257,376.75 - Step 5: Solve for x
x = 651,098,660,257,376.75/28,790,436.75 - Step 6: Final answer
x = 22,615,101.88
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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.