Finding the Fourth Proportional to 2,520,481,638.80, 3,780,722,458.20 and 1,358,220,171.80
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Solution
The fourth proportional to 2,520,481,638.80, 3,780,722,458.20 and 1,358,220,171.80 is: 2,037,330,257.70
Step by Step Solution
- Step 1: Write the proportion equation
2,520,481,638.80 : 3,780,722,458.20 = 1,358,220,171.80 : x - Step 2: Convert to fraction form
2,520,481,638.80/3,780,722,458.20 = 1,358,220,171.80/x - Step 3: Cross multiply
2,520,481,638.80x = 3,780,722,458.20 × 1,358,220,171.80 - Step 4: Simplify right side
2,520,481,638.80x = 5,135,053,506,704,522,240 - Step 5: Solve for x
x = 5,135,053,506,704,522,240/2,520,481,638.80 - Step 6: Final answer
x = 2,037,330,257.70
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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.