Finding the Fourth Proportional to 216,560,684.87, 298,866,385.02 and 122,483,172.18
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Solution
The fourth proportional to 216,560,684.87, 298,866,385.02 and 122,483,172.18 is: 169,033,926.53
Step by Step Solution
- Step 1: Write the proportion equation
216,560,684.87 : 298,866,385.02 = 122,483,172.18 : x - Step 2: Convert to fraction form
216,560,684.87/298,866,385.02 = 122,483,172.18/x - Step 3: Cross multiply
216,560,684.87x = 298,866,385.02 × 122,483,172.18 - Step 4: Simplify right side
216,560,684.87x = 36,606,102,895,218,832 - Step 5: Solve for x
x = 36,606,102,895,218,832/216,560,684.87 - Step 6: Final answer
x = 169,033,926.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.