Finding the Fourth Proportional to 18,145,156,987.80, 27,217,735,481.79 and 14,471,836,795.80
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Solution
The fourth proportional to 18,145,156,987.80, 27,217,735,481.79 and 14,471,836,795.80 is: 21,707,755,193.77
Step by Step Solution
- Step 1: Write the proportion equation
18,145,156,987.80 : 27,217,735,481.79 = 14,471,836,795.80 : x - Step 2: Convert to fraction form
18,145,156,987.80/27,217,735,481.79 = 14,471,836,795.80/x - Step 3: Cross multiply
18,145,156,987.80x = 27,217,735,481.79 × 14,471,836,795.80 - Step 4: Simplify right side
18,145,156,987.80x = 393,890,625,843,719,766,016 - Step 5: Solve for x
x = 393,890,625,843,719,766,016/18,145,156,987.80 - Step 6: Final answer
x = 21,707,755,193.77
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1.5x scale
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.