Finding the Fourth Proportional to 28,828,636.22, 39,783,520.68 and 15,775,894.46
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Solution
The fourth proportional to 28,828,636.22, 39,783,520.68 and 15,775,894.46 is: 21,770,735.83
Step by Step Solution
- Step 1: Write the proportion equation
28,828,636.22 : 39,783,520.68 = 15,775,894.46 : x - Step 2: Convert to fraction form
28,828,636.22/39,783,520.68 = 15,775,894.46/x - Step 3: Cross multiply
28,828,636.22x = 39,783,520.68 × 15,775,894.46 - Step 4: Simplify right side
28,828,636.22x = 627,620,623,494,907.50 - Step 5: Solve for x
x = 627,620,623,494,907.50/28,828,636.22 - Step 6: Final answer
x = 21,770,735.83
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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.