Finding the Fourth Proportional to 1,436,172,685.18, 1,982,007,122.97 and 792,425,472.64
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Solution
The fourth proportional to 1,436,172,685.18, 1,982,007,122.97 and 792,425,472.64 is: 1,093,596,158.32
Step by Step Solution
- Step 1: Write the proportion equation
1,436,172,685.18 : 1,982,007,122.97 = 792,425,472.64 : x - Step 2: Convert to fraction form
1,436,172,685.18/1,982,007,122.97 = 792,425,472.64/x - Step 3: Cross multiply
1,436,172,685.18x = 1,982,007,122.97 × 792,425,472.64 - Step 4: Simplify right side
1,436,172,685.18x = 1,570,592,931,195,348,736 - Step 5: Solve for x
x = 1,570,592,931,195,348,736/1,436,172,685.18 - Step 6: Final answer
x = 1,093,596,158.32
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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.