Finding the Fourth Proportional to 20,891,626.74, 31,338,880.11 and 8,748,864.18
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Solution
The fourth proportional to 20,891,626.74, 31,338,880.11 and 8,748,864.18 is: 13,123,899.30
Step by Step Solution
- Step 1: Write the proportion equation
20,891,626.74 : 31,338,880.11 = 8,748,864.18 : x - Step 2: Convert to fraction form
20,891,626.74/31,338,880.11 = 8,748,864.18/x - Step 3: Cross multiply
20,891,626.74x = 31,338,880.11 × 8,748,864.18 - Step 4: Simplify right side
20,891,626.74x = 274,179,605,635,693.44 - Step 5: Solve for x
x = 274,179,605,635,693.44/20,891,626.74 - Step 6: Final answer
x = 13,123,899.30
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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.