Finding the Fourth Proportional to 1,820,473,576.18, 2,512,257,902.14 and 985,107,110.74
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Solution
The fourth proportional to 1,820,473,576.18, 2,512,257,902.14 and 985,107,110.74 is: 1,359,450,175.93
Step by Step Solution
- Step 1: Write the proportion equation
1,820,473,576.18 : 2,512,257,902.14 = 985,107,110.74 : x - Step 2: Convert to fraction form
1,820,473,576.18/2,512,257,902.14 = 985,107,110.74/x - Step 3: Cross multiply
1,820,473,576.18x = 2,512,257,902.14 × 985,107,110.74 - Step 4: Simplify right side
1,820,473,576.18x = 2,474,843,123,410,868,736 - Step 5: Solve for x
x = 2,474,843,123,410,868,736/1,820,473,576.18 - Step 6: Final answer
x = 1,359,450,175.93
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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.