Finding the Fourth Proportional to 354,294,660.20, 531,441,990.30 and 225,473,361.80
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Solution
The fourth proportional to 354,294,660.20, 531,441,990.30 and 225,473,361.80 is: 338,210,042.70
Step by Step Solution
- Step 1: Write the proportion equation
354,294,660.20 : 531,441,990.30 = 225,473,361.80 : x - Step 2: Convert to fraction form
354,294,660.20/531,441,990.30 = 225,473,361.80/x - Step 3: Cross multiply
354,294,660.20x = 531,441,990.30 × 225,473,361.80 - Step 4: Simplify right side
354,294,660.20x = 119,826,012,154,624,000 - Step 5: Solve for x
x = 119,826,012,154,624,000/354,294,660.20 - Step 6: Final answer
x = 338,210,042.70
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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.