Finding the Fourth Proportional to 139,684,170.05, 192,733,753.61 and 84,693,542.21
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Solution
The fourth proportional to 139,684,170.05, 192,733,753.61 and 84,693,542.21 is: 116,858,655.43
Step by Step Solution
- Step 1: Write the proportion equation
139,684,170.05 : 192,733,753.61 = 84,693,542.21 : x - Step 2: Convert to fraction form
139,684,170.05/192,733,753.61 = 84,693,542.21/x - Step 3: Cross multiply
139,684,170.05x = 192,733,753.61 × 84,693,542.21 - Step 4: Simplify right side
139,684,170.05x = 16,323,304,295,908,340 - Step 5: Solve for x
x = 16,323,304,295,908,340/139,684,170.05 - Step 6: Final answer
x = 116,858,655.43
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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.