Finding the Fourth Proportional to 18,534,865.05, 27,806,927.36 and 13,080,605.78
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Solution
The fourth proportional to 18,534,865.05, 27,806,927.36 and 13,080,605.78 is: 19,624,176.05
Step by Step Solution
- Step 1: Write the proportion equation
18,534,865.05 : 27,806,927.36 = 13,080,605.78 : x - Step 2: Convert to fraction form
18,534,865.05/27,806,927.36 = 13,080,605.78/x - Step 3: Cross multiply
18,534,865.05x = 27,806,927.36 × 13,080,605.78 - Step 4: Simplify right side
18,534,865.05x = 363,731,454,753,370.44 - Step 5: Solve for x
x = 363,731,454,753,370.44/18,534,865.05 - Step 6: Final answer
x = 19,624,176.05
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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.