Finding the Fourth Proportional to 18,930,652.86, 28,398,915.21 and 8,000,888.49
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Solution
The fourth proportional to 18,930,652.86, 28,398,915.21 and 8,000,888.49 is: 12,002,573.58
Step by Step Solution
- Step 1: Write the proportion equation
18,930,652.86 : 28,398,915.21 = 8,000,888.49 : x - Step 2: Convert to fraction form
18,930,652.86/28,398,915.21 = 8,000,888.49/x - Step 3: Cross multiply
18,930,652.86x = 28,398,915.21 × 8,000,888.49 - Step 4: Simplify right side
18,930,652.86x = 227,216,553,832,174.94 - Step 5: Solve for x
x = 227,216,553,832,174.94/18,930,652.86 - Step 6: Final answer
x = 12,002,573.58
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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.