Finding the Fourth Proportional to 18,892,343.36, 26,079,478.13 and 12,700,980.99
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Solution
The fourth proportional to 18,892,343.36, 26,079,478.13 and 12,700,980.99 is: 17,532,761.80
Step by Step Solution
- Step 1: Write the proportion equation
18,892,343.36 : 26,079,478.13 = 12,700,980.99 : x - Step 2: Convert to fraction form
18,892,343.36/26,079,478.13 = 12,700,980.99/x - Step 3: Cross multiply
18,892,343.36x = 26,079,478.13 × 12,700,980.99 - Step 4: Simplify right side
18,892,343.36x = 331,234,955,894,745.88 - Step 5: Solve for x
x = 331,234,955,894,745.88/18,892,343.36 - Step 6: Final answer
x = 17,532,761.80
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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.