Finding the Fourth Proportional to 25,624,576.80, 38,436,865.20 and 8,352,744.30
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Solution
The fourth proportional to 25,624,576.80, 38,436,865.20 and 8,352,744.30 is: 12,529,116.45
Step by Step Solution
- Step 1: Write the proportion equation
25,624,576.80 : 38,436,865.20 = 8,352,744.30 : x - Step 2: Convert to fraction form
25,624,576.80/38,436,865.20 = 8,352,744.30/x - Step 3: Cross multiply
25,624,576.80x = 38,436,865.20 × 8,352,744.30 - Step 4: Simplify right side
25,624,576.80x = 321,053,306,709,168.38 - Step 5: Solve for x
x = 321,053,306,709,168.38/25,624,576.80 - Step 6: Final answer
x = 12,529,116.45
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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.