Finding the Fourth Proportional to 812,863,093.20, 1,121,661,106.09 and 450,747,951.81
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Solution
The fourth proportional to 812,863,093.20, 1,121,661,106.09 and 450,747,951.81 is: 621,982,287.58
Step by Step Solution
- Step 1: Write the proportion equation
812,863,093.20 : 1,121,661,106.09 = 450,747,951.81 : x - Step 2: Convert to fraction form
812,863,093.20/1,121,661,106.09 = 450,747,951.81/x - Step 3: Cross multiply
812,863,093.20x = 1,121,661,106.09 × 450,747,951.81 - Step 4: Simplify right side
812,863,093.20x = 505,586,446,195,006,592 - Step 5: Solve for x
x = 505,586,446,195,006,592/812,863,093.20 - Step 6: Final answer
x = 621,982,287.58
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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.