Finding the Fourth Proportional to 890,496,236.70, 1,244,146,691.70 and 890,496,236.70
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Solution
The fourth proportional to 890,496,236.70, 1,244,146,691.70 and 890,496,236.70 is: 1,244,146,691.70
Step by Step Solution
- Step 1: Write the proportion equation
890,496,236.70 : 1,244,146,691.70 = 890,496,236.70 : x - Step 2: Convert to fraction form
890,496,236.70/1,244,146,691.70 = 890,496,236.70/x - Step 3: Cross multiply
890,496,236.70x = 1,244,146,691.70 × 890,496,236.70 - Step 4: Simplify right side
890,496,236.70x = 1,107,907,946,861,605,248 - Step 5: Solve for x
x = 1,107,907,946,861,605,248/890,496,236.70 - Step 6: Final answer
x = 1,244,146,691.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.