Finding the Fourth Proportional to 19,160,647.68, 26,396,778.24 and 13,348,917.12
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Solution
The fourth proportional to 19,160,647.68, 26,396,778.24 and 13,348,917.12 is: 18,390,213.67
Step by Step Solution
- Step 1: Write the proportion equation
19,160,647.68 : 26,396,778.24 = 13,348,917.12 : x - Step 2: Convert to fraction form
19,160,647.68/26,396,778.24 = 13,348,917.12/x - Step 3: Cross multiply
19,160,647.68x = 26,396,778.24 × 13,348,917.12 - Step 4: Simplify right side
19,160,647.68x = 352,368,404,960,779.44 - Step 5: Solve for x
x = 352,368,404,960,779.44/19,160,647.68 - Step 6: Final answer
x = 18,390,213.67
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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.