Finding the Fourth Proportional to 14,478,799.28, 19,981,133.24 and 8,518,622.12
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Solution
The fourth proportional to 14,478,799.28, 19,981,133.24 and 8,518,622.12 is: 11,755,928.12
Step by Step Solution
- Step 1: Write the proportion equation
14,478,799.28 : 19,981,133.24 = 8,518,622.12 : x - Step 2: Convert to fraction form
14,478,799.28/19,981,133.24 = 8,518,622.12/x - Step 3: Cross multiply
14,478,799.28x = 19,981,133.24 × 8,518,622.12 - Step 4: Simplify right side
14,478,799.28x = 170,211,723,600,931.25 - Step 5: Solve for x
x = 170,211,723,600,931.25/14,478,799.28 - Step 6: Final answer
x = 11,755,928.12
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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.