Finding the Fourth Proportional to 18,894,645.70, 26,528,086.70 and 18,894,645.70
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Solution
The fourth proportional to 18,894,645.70, 26,528,086.70 and 18,894,645.70 is: 26,528,086.70
Step by Step Solution
- Step 1: Write the proportion equation
18,894,645.70 : 26,528,086.70 = 18,894,645.70 : x - Step 2: Convert to fraction form
18,894,645.70/26,528,086.70 = 18,894,645.70/x - Step 3: Cross multiply
18,894,645.70x = 26,528,086.70 × 18,894,645.70 - Step 4: Simplify right side
18,894,645.70x = 501,238,799,295,382.12 - Step 5: Solve for x
x = 501,238,799,295,382.12/18,894,645.70 - Step 6: Final answer
x = 26,528,086.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.