Finding the Fourth Proportional to 129,931,044.17, 194,831,716.23 and 42,481,170.09
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Solution
The fourth proportional to 129,931,044.17, 194,831,716.23 and 42,481,170.09 is: 63,700,552.31
Step by Step Solution
- Step 1: Write the proportion equation
129,931,044.17 : 194,831,716.23 = 42,481,170.09 : x - Step 2: Convert to fraction form
129,931,044.17/194,831,716.23 = 42,481,170.09/x - Step 3: Cross multiply
129,931,044.17x = 194,831,716.23 × 42,481,170.09 - Step 4: Simplify right side
129,931,044.17x = 8,276,679,276,093,244 - Step 5: Solve for x
x = 8,276,679,276,093,244/129,931,044.17 - Step 6: Final answer
x = 63,700,552.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.