Finding the Fourth Proportional to 8,372,232.20, 12,558,348.30 and 8,260,257.80
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Solution
The fourth proportional to 8,372,232.20, 12,558,348.30 and 8,260,257.80 is: 12,390,386.70
Step by Step Solution
- Step 1: Write the proportion equation
8,372,232.20 : 12,558,348.30 = 8,260,257.80 : x - Step 2: Convert to fraction form
8,372,232.20/12,558,348.30 = 8,260,257.80/x - Step 3: Cross multiply
8,372,232.20x = 12,558,348.30 × 8,260,257.80 - Step 4: Simplify right side
8,372,232.20x = 103,735,194,500,191.75 - Step 5: Solve for x
x = 103,735,194,500,191.75/8,372,232.20 - Step 6: Final answer
x = 12,390,386.70
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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.