Finding the Fourth Proportional to 769,770,976.87, 1,062,306,357.68 and 435,236,316.84
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Solution
The fourth proportional to 769,770,976.87, 1,062,306,357.68 and 435,236,316.84 is: 600,638,787.85
Step by Step Solution
- Step 1: Write the proportion equation
769,770,976.87 : 1,062,306,357.68 = 435,236,316.84 : x - Step 2: Convert to fraction form
769,770,976.87/1,062,306,357.68 = 435,236,316.84/x - Step 3: Cross multiply
769,770,976.87x = 1,062,306,357.68 × 435,236,316.84 - Step 4: Simplify right side
769,770,976.87x = 462,354,306,469,210,304 - Step 5: Solve for x
x = 462,354,306,469,210,304/769,770,976.87 - Step 6: Final answer
x = 600,638,787.85
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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.