Finding the Fourth Proportional to 20,728,069.49, 31,090,982.49 and 6,351,178.92
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Solution
The fourth proportional to 20,728,069.49, 31,090,982.49 and 6,351,178.92 is: 9,526,424.67
Step by Step Solution
- Step 1: Write the proportion equation
20,728,069.49 : 31,090,982.49 = 6,351,178.92 : x - Step 2: Convert to fraction form
20,728,069.49/31,090,982.49 = 6,351,178.92/x - Step 3: Cross multiply
20,728,069.49x = 31,090,982.49 × 6,351,178.92 - Step 4: Simplify right side
20,728,069.49x = 197,464,392,475,985.91 - Step 5: Solve for x
x = 197,464,392,475,985.91/20,728,069.49 - Step 6: Final answer
x = 9,526,424.67
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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.