Finding the Fourth Proportional to 168,940,857.84, 233,138,385.72 and 91,678,521.84
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Solution
The fourth proportional to 168,940,857.84, 233,138,385.72 and 91,678,521.84 is: 126,516,361.17
Step by Step Solution
- Step 1: Write the proportion equation
168,940,857.84 : 233,138,385.72 = 91,678,521.84 : x - Step 2: Convert to fraction form
168,940,857.84/233,138,385.72 = 91,678,521.84/x - Step 3: Cross multiply
168,940,857.84x = 233,138,385.72 × 91,678,521.84 - Step 4: Simplify right side
168,940,857.84x = 21,373,782,586,973,364 - Step 5: Solve for x
x = 21,373,782,586,973,364/168,940,857.84 - Step 6: Final answer
x = 126,516,361.17
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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.