Finding the Fourth Proportional to 2,976,412,652.49, 4,107,416,864.85 and 1,638,274,132.65
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Solution
The fourth proportional to 2,976,412,652.49, 4,107,416,864.85 and 1,638,274,132.65 is: 2,260,800,361.83
Step by Step Solution
- Step 1: Write the proportion equation
2,976,412,652.49 : 4,107,416,864.85 = 1,638,274,132.65 : x - Step 2: Convert to fraction form
2,976,412,652.49/4,107,416,864.85 = 1,638,274,132.65/x - Step 3: Cross multiply
2,976,412,652.49x = 4,107,416,864.85 × 1,638,274,132.65 - Step 4: Simplify right side
2,976,412,652.49x = 6,729,074,801,694,115,840 - Step 5: Solve for x
x = 6,729,074,801,694,115,840/2,976,412,652.49 - Step 6: Final answer
x = 2,260,800,361.83
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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.