Finding the Fourth Proportional to 20,685,220.88, 31,016,365.97 and 9,594,194.90
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Solution
The fourth proportional to 20,685,220.88, 31,016,365.97 and 9,594,194.90 is: 14,385,974.50
Step by Step Solution
- Step 1: Write the proportion equation
20,685,220.88 : 31,016,365.97 = 9,594,194.90 : x - Step 2: Convert to fraction form
20,685,220.88/31,016,365.97 = 9,594,194.90/x - Step 3: Cross multiply
20,685,220.88x = 31,016,365.97 × 9,594,194.90 - Step 4: Simplify right side
20,685,220.88x = 297,577,060,002,854.75 - Step 5: Solve for x
x = 297,577,060,002,854.75/20,685,220.88 - Step 6: Final answer
x = 14,385,974.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.