Finding the Fourth Proportional to 19,916,768.20, 27,485,985.12 and 11,096,211.64
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Solution
The fourth proportional to 19,916,768.20, 27,485,985.12 and 11,096,211.64 is: 15,313,242.84
Step by Step Solution
- Step 1: Write the proportion equation
19,916,768.20 : 27,485,985.12 = 11,096,211.64 : x - Step 2: Convert to fraction form
19,916,768.20/27,485,985.12 = 11,096,211.64/x - Step 3: Cross multiply
19,916,768.20x = 27,485,985.12 × 11,096,211.64 - Step 4: Simplify right side
19,916,768.20x = 304,990,308,025,410.81 - Step 5: Solve for x
x = 304,990,308,025,410.81/19,916,768.20 - Step 6: Final answer
x = 15,313,242.84
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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.