Finding the Fourth Proportional to 12,232,942.40, 18,348,830.40 and 4,145,124.80
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Solution
The fourth proportional to 12,232,942.40, 18,348,830.40 and 4,145,124.80 is: 6,217,489.58
Step by Step Solution
- Step 1: Write the proportion equation
12,232,942.40 : 18,348,830.40 = 4,145,124.80 : x - Step 2: Convert to fraction form
12,232,942.40/18,348,830.40 = 4,145,124.80/x - Step 3: Cross multiply
12,232,942.40x = 18,348,830.40 × 4,145,124.80 - Step 4: Simplify right side
12,232,942.40x = 76,058,191,942,033.91 - Step 5: Solve for x
x = 76,058,191,942,033.91/12,232,942.40 - Step 6: Final answer
x = 6,217,489.58
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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.