Finding the Fourth Proportional to 19,982,949.16, 27,577,137.72 and 12,246,496.60
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Solution
The fourth proportional to 19,982,949.16, 27,577,137.72 and 12,246,496.60 is: 16,900,574.62
Step by Step Solution
- Step 1: Write the proportion equation
19,982,949.16 : 27,577,137.72 = 12,246,496.60 : x - Step 2: Convert to fraction form
19,982,949.16/27,577,137.72 = 12,246,496.60/x - Step 3: Cross multiply
19,982,949.16x = 27,577,137.72 × 12,246,496.60 - Step 4: Simplify right side
19,982,949.16x = 337,723,323,325,711.75 - Step 5: Solve for x
x = 337,723,323,325,711.75/19,982,949.16 - Step 6: Final answer
x = 16,900,574.62
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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.