Finding the Fourth Proportional to 18,444,853.20, 27,643,660.20 and 14,163,800.70
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Solution
The fourth proportional to 18,444,853.20, 27,643,660.20 and 14,163,800.70 is: 21,227,563.56
Step by Step Solution
- Step 1: Write the proportion equation
18,444,853.20 : 27,643,660.20 = 14,163,800.70 : x - Step 2: Convert to fraction form
18,444,853.20/27,643,660.20 = 14,163,800.70/x - Step 3: Cross multiply
18,444,853.20x = 27,643,660.20 × 14,163,800.70 - Step 4: Simplify right side
18,444,853.20x = 391,539,293,691,322.12 - Step 5: Solve for x
x = 391,539,293,691,322.12/18,444,853.20 - Step 6: Final answer
x = 21,227,563.56
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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.