Finding the Fourth Proportional to 298,995,121.80, 448,492,682.70 and 218,373,553.80
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Solution
The fourth proportional to 298,995,121.80, 448,492,682.70 and 218,373,553.80 is: 327,560,330.70
Step by Step Solution
- Step 1: Write the proportion equation
298,995,121.80 : 448,492,682.70 = 218,373,553.80 : x - Step 2: Convert to fraction form
298,995,121.80/448,492,682.70 = 218,373,553.80/x - Step 3: Cross multiply
298,995,121.80x = 448,492,682.70 × 218,373,553.80 - Step 4: Simplify right side
298,995,121.80x = 97,938,940,974,494,784 - Step 5: Solve for x
x = 97,938,940,974,494,784/298,995,121.80 - Step 6: Final answer
x = 327,560,330.70
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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.