Finding the Fourth Proportional to 221,639,917.80, 332,459,876.70 and 149,080,506.60
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Solution
The fourth proportional to 221,639,917.80, 332,459,876.70 and 149,080,506.60 is: 223,620,759.90
Step by Step Solution
- Step 1: Write the proportion equation
221,639,917.80 : 332,459,876.70 = 149,080,506.60 : x - Step 2: Convert to fraction form
221,639,917.80/332,459,876.70 = 149,080,506.60/x - Step 3: Cross multiply
221,639,917.80x = 332,459,876.70 × 149,080,506.60 - Step 4: Simplify right side
221,639,917.80x = 49,563,286,842,609,536 - Step 5: Solve for x
x = 49,563,286,842,609,536/221,639,917.80 - Step 6: Final answer
x = 223,620,759.90
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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.