Finding the Fourth Proportional to 18,425,167.20, 27,637,750.80 and 14,173,639.20
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Solution
The fourth proportional to 18,425,167.20, 27,637,750.80 and 14,173,639.20 is: 21,260,458.80
Step by Step Solution
- Step 1: Write the proportion equation
18,425,167.20 : 27,637,750.80 = 14,173,639.20 : x - Step 2: Convert to fraction form
18,425,167.20/27,637,750.80 = 14,173,639.20/x - Step 3: Cross multiply
18,425,167.20x = 27,637,750.80 × 14,173,639.20 - Step 4: Simplify right side
18,425,167.20x = 391,727,508,138,711.38 - Step 5: Solve for x
x = 391,727,508,138,711.38/18,425,167.20 - Step 6: Final answer
x = 21,260,458.80
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1.5x scale
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.