Finding the Fourth Proportional to 812,275,188.14, 1,218,057,977.00 and 287,469,865.99
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Solution
The fourth proportional to 812,275,188.14, 1,218,057,977.00 and 287,469,865.99 is: 431,079,230.94
Step by Step Solution
- Step 1: Write the proportion equation
812,275,188.14 : 1,218,057,977.00 = 287,469,865.99 : x - Step 2: Convert to fraction form
812,275,188.14/1,218,057,977.00 = 287,469,865.99/x - Step 3: Cross multiply
812,275,188.14x = 1,218,057,977.00 × 287,469,865.99 - Step 4: Simplify right side
812,275,188.14x = 350,154,963,418,469,632 - Step 5: Solve for x
x = 350,154,963,418,469,632/812,275,188.14 - Step 6: Final answer
x = 431,079,230.94
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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.