Finding the Fourth Proportional to 147,624,515.20, 221,436,772.80 and 65,743,235.20
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Solution
The fourth proportional to 147,624,515.20, 221,436,772.80 and 65,743,235.20 is: 98,614,852.80
Step by Step Solution
- Step 1: Write the proportion equation
147,624,515.20 : 221,436,772.80 = 65,743,235.20 : x - Step 2: Convert to fraction form
147,624,515.20/221,436,772.80 = 65,743,235.20/x - Step 3: Cross multiply
147,624,515.20x = 221,436,772.80 × 65,743,235.20 - Step 4: Simplify right side
147,624,515.20x = 14,557,969,836,119,364 - Step 5: Solve for x
x = 14,557,969,836,119,364/147,624,515.20 - Step 6: Final answer
x = 98,614,852.80
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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.