Finding the Fourth Proportional to 13,424,489.55, 18,525,917.43 and 8,126,306.19
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Solution
The fourth proportional to 13,424,489.55, 18,525,917.43 and 8,126,306.19 is: 11,214,376.30
Step by Step Solution
- Step 1: Write the proportion equation
13,424,489.55 : 18,525,917.43 = 8,126,306.19 : x - Step 2: Convert to fraction form
13,424,489.55/18,525,917.43 = 8,126,306.19/x - Step 3: Cross multiply
13,424,489.55x = 18,525,917.43 × 8,126,306.19 - Step 4: Simplify right side
13,424,489.55x = 150,547,277,486,837.91 - Step 5: Solve for x
x = 150,547,277,486,837.91/13,424,489.55 - Step 6: Final answer
x = 11,214,376.30
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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.