Finding the Fourth Proportional to 14,997,414.12, 20,696,328.48 and 8,121,738.84
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Solution
The fourth proportional to 14,997,414.12, 20,696,328.48 and 8,121,738.84 is: 11,207,943.82
Step by Step Solution
- Step 1: Write the proportion equation
14,997,414.12 : 20,696,328.48 = 8,121,738.84 : x - Step 2: Convert to fraction form
14,997,414.12/20,696,328.48 = 8,121,738.84/x - Step 3: Cross multiply
14,997,414.12x = 20,696,328.48 × 8,121,738.84 - Step 4: Simplify right side
14,997,414.12x = 168,090,174,861,414.16 - Step 5: Solve for x
x = 168,090,174,861,414.16/14,997,414.12 - Step 6: Final answer
x = 11,207,943.82
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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.