Finding the Fourth Proportional to 2,107,614,377.20, 3,161,428,506.60 and 533,720,821.36
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Solution
The fourth proportional to 2,107,614,377.20, 3,161,428,506.60 and 533,720,821.36 is: 800,582,989.69
Step by Step Solution
- Step 1: Write the proportion equation
2,107,614,377.20 : 3,161,428,506.60 = 533,720,821.36 : x - Step 2: Convert to fraction form
2,107,614,377.20/3,161,428,506.60 = 533,720,821.36/x - Step 3: Cross multiply
2,107,614,377.20x = 3,161,428,506.60 × 533,720,821.36 - Step 4: Simplify right side
2,107,614,377.20x = 1,687,320,219,213,470,208 - Step 5: Solve for x
x = 1,687,320,219,213,470,208/2,107,614,377.20 - Step 6: Final answer
x = 800,582,989.69
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1.5x scale
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.