Finding the Fourth Proportional to 13,174,734.12, 18,178,963.78 and 8,276,487.44
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Solution
The fourth proportional to 13,174,734.12, 18,178,963.78 and 8,276,487.44 is: 11,420,189.89
Step by Step Solution
- Step 1: Write the proportion equation
13,174,734.12 : 18,178,963.78 = 8,276,487.44 : x - Step 2: Convert to fraction form
13,174,734.12/18,178,963.78 = 8,276,487.44/x - Step 3: Cross multiply
13,174,734.12x = 18,178,963.78 × 8,276,487.44 - Step 4: Simplify right side
13,174,734.12x = 150,457,965,397,384.94 - Step 5: Solve for x
x = 150,457,965,397,384.94/13,174,734.12 - Step 6: Final answer
x = 11,420,189.89
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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.