Finding the Fourth Proportional to 209,165,136.05, 313,786,003.95 and 86,276,414.13
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Solution
The fourth proportional to 209,165,136.05, 313,786,003.95 and 86,276,414.13 is: 129,430,419.13
Step by Step Solution
- Step 1: Write the proportion equation
209,165,136.05 : 313,786,003.95 = 86,276,414.13 : x - Step 2: Convert to fraction form
209,165,136.05/313,786,003.95 = 86,276,414.13/x - Step 3: Cross multiply
209,165,136.05x = 313,786,003.95 × 86,276,414.13 - Step 4: Simplify right side
209,165,136.05x = 27,072,331,224,988,012 - Step 5: Solve for x
x = 27,072,331,224,988,012/209,165,136.05 - Step 6: Final answer
x = 129,430,419.13
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.