Finding the Fourth Proportional to 18,214,186.84, 25,138,687.76 and 10,872,398.68
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Solution
The fourth proportional to 18,214,186.84, 25,138,687.76 and 10,872,398.68 is: 15,005,766.55
Step by Step Solution
- Step 1: Write the proportion equation
18,214,186.84 : 25,138,687.76 = 10,872,398.68 : x - Step 2: Convert to fraction form
18,214,186.84/25,138,687.76 = 10,872,398.68/x - Step 3: Cross multiply
18,214,186.84x = 25,138,687.76 × 10,872,398.68 - Step 4: Simplify right side
18,214,186.84x = 273,317,835,618,756.16 - Step 5: Solve for x
x = 273,317,835,618,756.16/18,214,186.84 - Step 6: Final answer
x = 15,005,766.55
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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.