Finding the Fourth Proportional to 19,737,755.71, 27,229,762.36 and 13,213,487.05
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Solution
The fourth proportional to 19,737,755.71, 27,229,762.36 and 13,213,487.05 is: 18,229,028.55
Step by Step Solution
- Step 1: Write the proportion equation
19,737,755.71 : 27,229,762.36 = 13,213,487.05 : x - Step 2: Convert to fraction form
19,737,755.71/27,229,762.36 = 13,213,487.05/x - Step 3: Cross multiply
19,737,755.71x = 27,229,762.36 × 13,213,487.05 - Step 4: Simplify right side
19,737,755.71x = 359,800,112,318,437.44 - Step 5: Solve for x
x = 359,800,112,318,437.44/19,737,755.71 - Step 6: Final answer
x = 18,229,028.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.