Finding the Fourth Proportional to 19,889,651.41, 27,446,235.14 and 11,186,142.50
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Solution
The fourth proportional to 19,889,651.41, 27,446,235.14 and 11,186,142.50 is: 15,436,042.15
Step by Step Solution
- Step 1: Write the proportion equation
19,889,651.41 : 27,446,235.14 = 11,186,142.50 : x - Step 2: Convert to fraction form
19,889,651.41/27,446,235.14 = 11,186,142.50/x - Step 3: Cross multiply
19,889,651.41x = 27,446,235.14 × 11,186,142.50 - Step 4: Simplify right side
19,889,651.41x = 307,017,497,461,128.38 - Step 5: Solve for x
x = 307,017,497,461,128.38/19,889,651.41 - Step 6: Final answer
x = 15,436,042.15
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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.