Finding the Fourth Proportional to 20,663,897.99, 31,000,331.13 and 6,286,592.12
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Solution
The fourth proportional to 20,663,897.99, 31,000,331.13 and 6,286,592.12 is: 9,431,252.39
Step by Step Solution
- Step 1: Write the proportion equation
20,663,897.99 : 31,000,331.13 = 6,286,592.12 : x - Step 2: Convert to fraction form
20,663,897.99/31,000,331.13 = 6,286,592.12/x - Step 3: Cross multiply
20,663,897.99x = 31,000,331.13 × 6,286,592.12 - Step 4: Simplify right side
20,663,897.99x = 194,886,437,220,672.31 - Step 5: Solve for x
x = 194,886,437,220,672.31/20,663,897.99 - Step 6: Final answer
x = 9,431,252.39
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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.