Finding the Fourth Proportional to 2,659,838,114.40, 3,990,135,085.20 and 819,398,882.40
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Solution
The fourth proportional to 2,659,838,114.40, 3,990,135,085.20 and 819,398,882.40 is: 1,229,214,744.96
Step by Step Solution
- Step 1: Write the proportion equation
2,659,838,114.40 : 3,990,135,085.20 = 819,398,882.40 : x - Step 2: Convert to fraction form
2,659,838,114.40/3,990,135,085.20 = 819,398,882.40/x - Step 3: Cross multiply
2,659,838,114.40x = 3,990,135,085.20 × 819,398,882.40 - Step 4: Simplify right side
2,659,838,114.40x = 3,269,512,229,437,908,480 - Step 5: Solve for x
x = 3,269,512,229,437,908,480/2,659,838,114.40 - Step 6: Final answer
x = 1,229,214,744.96
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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.