Finding the Fourth Proportional to 82,930,276.20, 124,395,414.30 and 81,654,817.80
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Solution
The fourth proportional to 82,930,276.20, 124,395,414.30 and 81,654,817.80 is: 122,482,226.70
Step by Step Solution
- Step 1: Write the proportion equation
82,930,276.20 : 124,395,414.30 = 81,654,817.80 : x - Step 2: Convert to fraction form
82,930,276.20/124,395,414.30 = 81,654,817.80/x - Step 3: Cross multiply
82,930,276.20x = 124,395,414.30 × 81,654,817.80 - Step 4: Simplify right side
82,930,276.20x = 10,157,484,889,822,014 - Step 5: Solve for x
x = 10,157,484,889,822,014/82,930,276.20 - Step 6: Final answer
x = 122,482,226.70
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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.