Finding the Fourth Proportional to 19,677,315.46, 27,163,403.81 and 12,711,390.27
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Solution
The fourth proportional to 19,677,315.46, 27,163,403.81 and 12,711,390.27 is: 17,547,344.18
Step by Step Solution
- Step 1: Write the proportion equation
19,677,315.46 : 27,163,403.81 = 12,711,390.27 : x - Step 2: Convert to fraction form
19,677,315.46/27,163,403.81 = 12,711,390.27/x - Step 3: Cross multiply
19,677,315.46x = 27,163,403.81 × 12,711,390.27 - Step 4: Simplify right side
19,677,315.46x = 345,284,626,844,251.75 - Step 5: Solve for x
x = 345,284,626,844,251.75/19,677,315.46 - Step 6: Final answer
x = 17,547,344.18
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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.