Finding the Fourth Proportional to 513,541,120.25, 708,626,958.65 and 287,492,481.99
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Solution
The fourth proportional to 513,541,120.25, 708,626,958.65 and 287,492,481.99 is: 396,706,154.80
Step by Step Solution
- Step 1: Write the proportion equation
513,541,120.25 : 708,626,958.65 = 287,492,481.99 : x - Step 2: Convert to fraction form
513,541,120.25/708,626,958.65 = 287,492,481.99/x - Step 3: Cross multiply
513,541,120.25x = 708,626,958.65 × 287,492,481.99 - Step 4: Simplify right side
513,541,120.25x = 203,724,923,147,313,600 - Step 5: Solve for x
x = 203,724,923,147,313,600/513,541,120.25 - Step 6: Final answer
x = 396,706,154.80
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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.