Finding the Fourth Proportional to 199,320,439.79, 275,087,049.26 and 115,670,609.43
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Solution
The fourth proportional to 199,320,439.79, 275,087,049.26 and 115,670,609.43 is: 159,639,857.65
Step by Step Solution
- Step 1: Write the proportion equation
199,320,439.79 : 275,087,049.26 = 115,670,609.43 : x - Step 2: Convert to fraction form
199,320,439.79/275,087,049.26 = 115,670,609.43/x - Step 3: Cross multiply
199,320,439.79x = 275,087,049.26 × 115,670,609.43 - Step 4: Simplify right side
199,320,439.79x = 31,819,486,633,626,280 - Step 5: Solve for x
x = 31,819,486,633,626,280/199,320,439.79 - Step 6: Final answer
x = 159,639,857.65
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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.