Finding the Fourth Proportional to 19,982,770.66, 27,576,891.21 and 12,246,318.10
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Solution
The fourth proportional to 19,982,770.66, 27,576,891.21 and 12,246,318.10 is: 16,900,328.17
Step by Step Solution
- Step 1: Write the proportion equation
19,982,770.66 : 27,576,891.21 = 12,246,318.10 : x - Step 2: Convert to fraction form
19,982,770.66/27,576,891.21 = 12,246,318.10/x - Step 3: Cross multiply
19,982,770.66x = 27,576,891.21 × 12,246,318.10 - Step 4: Simplify right side
19,982,770.66x = 337,715,381,966,753.88 - Step 5: Solve for x
x = 337,715,381,966,753.88/19,982,770.66 - Step 6: Final answer
x = 16,900,328.17
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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.