Finding the Fourth Proportional to 10,351,972.20, 15,548,136.08 and 8,434,300.56
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Solution
The fourth proportional to 10,351,972.20, 15,548,136.08 and 8,434,300.56 is: 12,667,890.75
Step by Step Solution
- Step 1: Write the proportion equation
10,351,972.20 : 15,548,136.08 = 8,434,300.56 : x - Step 2: Convert to fraction form
10,351,972.20/15,548,136.08 = 8,434,300.56/x - Step 3: Cross multiply
10,351,972.20x = 15,548,136.08 × 8,434,300.56 - Step 4: Simplify right side
10,351,972.20x = 131,137,652,846,500.22 - Step 5: Solve for x
x = 131,137,652,846,500.22/10,351,972.20 - Step 6: Final answer
x = 12,667,890.75
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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.