Finding the Fourth Proportional to 5,218,937,767.80, 7,202,135,306.70 and 2,872,094,311.80
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Solution
The fourth proportional to 5,218,937,767.80, 7,202,135,306.70 and 2,872,094,311.80 is: 3,963,490,803.59
Step by Step Solution
- Step 1: Write the proportion equation
5,218,937,767.80 : 7,202,135,306.70 = 2,872,094,311.80 : x - Step 2: Convert to fraction form
5,218,937,767.80/7,202,135,306.70 = 2,872,094,311.80/x - Step 3: Cross multiply
5,218,937,767.80x = 7,202,135,306.70 × 2,872,094,311.80 - Step 4: Simplify right side
5,218,937,767.80x = 20,685,211,847,187,017,728 - Step 5: Solve for x
x = 20,685,211,847,187,017,728/5,218,937,767.80 - Step 6: Final answer
x = 3,963,490,803.59
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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.