Finding the Fourth Proportional to 1,992,816,077.20, 2,989,224,115.80 and 887,418,797.20
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Solution
The fourth proportional to 1,992,816,077.20, 2,989,224,115.80 and 887,418,797.20 is: 1,331,128,195.80
Step by Step Solution
- Step 1: Write the proportion equation
1,992,816,077.20 : 2,989,224,115.80 = 887,418,797.20 : x - Step 2: Convert to fraction form
1,992,816,077.20/2,989,224,115.80 = 887,418,797.20/x - Step 3: Cross multiply
1,992,816,077.20x = 2,989,224,115.80 × 887,418,797.20 - Step 4: Simplify right side
1,992,816,077.20x = 2,652,693,669,404,469,760 - Step 5: Solve for x
x = 2,652,693,669,404,469,760/1,992,816,077.20 - Step 6: Final answer
x = 1,331,128,195.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.