Finding the Fourth Proportional to 116,889,797.52, 161,296,937.82 and 79,136,165.70
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Solution
The fourth proportional to 116,889,797.52, 161,296,937.82 and 79,136,165.70 is: 109,200,473.17
Step by Step Solution
- Step 1: Write the proportion equation
116,889,797.52 : 161,296,937.82 = 79,136,165.70 : x - Step 2: Convert to fraction form
116,889,797.52/161,296,937.82 = 79,136,165.70/x - Step 3: Cross multiply
116,889,797.52x = 161,296,937.82 × 79,136,165.70 - Step 4: Simplify right side
116,889,797.52x = 12,764,421,198,226,116 - Step 5: Solve for x
x = 12,764,421,198,226,116/116,889,797.52 - Step 6: Final answer
x = 109,200,473.17
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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.