Finding the Fourth Proportional to 36,145,278.12, 49,880,543.94 and 19,848,786.60
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Solution
The fourth proportional to 36,145,278.12, 49,880,543.94 and 19,848,786.60 is: 27,391,358.53
Step by Step Solution
- Step 1: Write the proportion equation
36,145,278.12 : 49,880,543.94 = 19,848,786.60 : x - Step 2: Convert to fraction form
36,145,278.12/49,880,543.94 = 19,848,786.60/x - Step 3: Cross multiply
36,145,278.12x = 49,880,543.94 × 19,848,786.60 - Step 4: Simplify right side
36,145,278.12x = 990,068,272,156,983.25 - Step 5: Solve for x
x = 990,068,272,156,983.25/36,145,278.12 - Step 6: Final answer
x = 27,391,358.53
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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.