Finding the Fourth Proportional to 923,623,459.38, 1,274,117,136.93 and 571,086,757.62
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Solution
The fourth proportional to 923,623,459.38, 1,274,117,136.93 and 571,086,757.62 is: 787,800,934.64
Step by Step Solution
- Step 1: Write the proportion equation
923,623,459.38 : 1,274,117,136.93 = 571,086,757.62 : x - Step 2: Convert to fraction form
923,623,459.38/1,274,117,136.93 = 571,086,757.62/x - Step 3: Cross multiply
923,623,459.38x = 1,274,117,136.93 × 571,086,757.62 - Step 4: Simplify right side
923,623,459.38x = 727,631,424,557,431,296 - Step 5: Solve for x
x = 727,631,424,557,431,296/923,623,459.38 - Step 6: Final answer
x = 787,800,934.64
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Double scale
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1.5x scale
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.