Finding the Fourth Proportional to 220,202,422.20, 330,293,135.70 and 74,621,705.40
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Solution
The fourth proportional to 220,202,422.20, 330,293,135.70 and 74,621,705.40 is: 111,929,000.70
Step by Step Solution
- Step 1: Write the proportion equation
220,202,422.20 : 330,293,135.70 = 74,621,705.40 : x - Step 2: Convert to fraction form
220,202,422.20/330,293,135.70 = 74,621,705.40/x - Step 3: Cross multiply
220,202,422.20x = 330,293,135.70 × 74,621,705.40 - Step 4: Simplify right side
220,202,422.20x = 24,647,037,067,847,624 - Step 5: Solve for x
x = 24,647,037,067,847,624/220,202,422.20 - Step 6: Final answer
x = 111,929,000.70
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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.