Finding the Fourth Proportional to 18,978,169.26, 26,189,909.21 and 10,605,539.09
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Solution
The fourth proportional to 18,978,169.26, 26,189,909.21 and 10,605,539.09 is: 14,635,663.85
Step by Step Solution
- Step 1: Write the proportion equation
18,978,169.26 : 26,189,909.21 = 10,605,539.09 : x - Step 2: Convert to fraction form
18,978,169.26/26,189,909.21 = 10,605,539.09/x - Step 3: Cross multiply
18,978,169.26x = 26,189,909.21 × 10,605,539.09 - Step 4: Simplify right side
18,978,169.26x = 277,758,105,706,228.78 - Step 5: Solve for x
x = 277,758,105,706,228.78/18,978,169.26 - Step 6: Final answer
x = 14,635,663.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.