Finding the Fourth Proportional to 18,715,497.80, 28,073,246.70 and 18,715,497.80
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Solution
The fourth proportional to 18,715,497.80, 28,073,246.70 and 18,715,497.80 is: 28,073,246.70
Step by Step Solution
- Step 1: Write the proportion equation
18,715,497.80 : 28,073,246.70 = 18,715,497.80 : x - Step 2: Convert to fraction form
18,715,497.80/28,073,246.70 = 18,715,497.80/x - Step 3: Cross multiply
18,715,497.80x = 28,073,246.70 × 18,715,497.80 - Step 4: Simplify right side
18,715,497.80x = 525,404,786,852,707.25 - Step 5: Solve for x
x = 525,404,786,852,707.25/18,715,497.80 - Step 6: Final answer
x = 28,073,246.70
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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.