Finding the Fourth Proportional to 18,377,969.40, 27,566,954.10 and 12,331,351.80
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Solution
The fourth proportional to 18,377,969.40, 27,566,954.10 and 12,331,351.80 is: 18,497,027.70
Step by Step Solution
- Step 1: Write the proportion equation
18,377,969.40 : 27,566,954.10 = 12,331,351.80 : x - Step 2: Convert to fraction form
18,377,969.40/27,566,954.10 = 12,331,351.80/x - Step 3: Cross multiply
18,377,969.40x = 27,566,954.10 × 12,331,351.80 - Step 4: Simplify right side
18,377,969.40x = 339,937,809,061,552.44 - Step 5: Solve for x
x = 339,937,809,061,552.44/18,377,969.40 - Step 6: Final answer
x = 18,497,027.70
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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.