Finding the Fourth Proportional to 505,197,136.10, 705,554,121.70 and 505,197,136.10
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Solution
The fourth proportional to 505,197,136.10, 705,554,121.70 and 505,197,136.10 is: 705,554,121.70
Step by Step Solution
- Step 1: Write the proportion equation
505,197,136.10 : 705,554,121.70 = 505,197,136.10 : x - Step 2: Convert to fraction form
505,197,136.10/705,554,121.70 = 505,197,136.10/x - Step 3: Cross multiply
505,197,136.10x = 705,554,121.70 × 505,197,136.10 - Step 4: Simplify right side
505,197,136.10x = 356,443,921,646,390,912 - Step 5: Solve for x
x = 356,443,921,646,390,912/505,197,136.10 - Step 6: Final answer
x = 705,554,121.70
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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.