Finding the Fourth Proportional to 8,649,816.40, 11,936,536.50 and 4,782,238.12
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Solution
The fourth proportional to 8,649,816.40, 11,936,536.50 and 4,782,238.12 is: 6,599,372.43
Step by Step Solution
- Step 1: Write the proportion equation
8,649,816.40 : 11,936,536.50 = 4,782,238.12 : x - Step 2: Convert to fraction form
8,649,816.40/11,936,536.50 = 4,782,238.12/x - Step 3: Cross multiply
8,649,816.40x = 11,936,536.50 × 4,782,238.12 - Step 4: Simplify right side
8,649,816.40x = 57,083,359,871,071.38 - Step 5: Solve for x
x = 57,083,359,871,071.38/8,649,816.40 - Step 6: Final answer
x = 6,599,372.43
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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.