Finding the Fourth Proportional to 8,079,655.68, 11,149,963.20 and 4,457,983.68
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Solution
The fourth proportional to 8,079,655.68, 11,149,963.20 and 4,457,983.68 is: 6,152,038.64
Step by Step Solution
- Step 1: Write the proportion equation
8,079,655.68 : 11,149,963.20 = 4,457,983.68 : x - Step 2: Convert to fraction form
8,079,655.68/11,149,963.20 = 4,457,983.68/x - Step 3: Cross multiply
8,079,655.68x = 11,149,963.20 × 4,457,983.68 - Step 4: Simplify right side
8,079,655.68x = 49,706,353,978,200.57 - Step 5: Solve for x
x = 49,706,353,978,200.57/8,079,655.68 - Step 6: Final answer
x = 6,152,038.64
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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.