Finding the Fourth Proportional to 66,363,900.54, 99,546,165.87 and 20,305,696.26
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Solution
The fourth proportional to 66,363,900.54, 99,546,165.87 and 20,305,696.26 is: 30,458,640.79
Step by Step Solution
- Step 1: Write the proportion equation
66,363,900.54 : 99,546,165.87 = 20,305,696.26 : x - Step 2: Convert to fraction form
66,363,900.54/99,546,165.87 = 20,305,696.26/x - Step 3: Cross multiply
66,363,900.54x = 99,546,165.87 × 20,305,696.26 - Step 4: Simplify right side
66,363,900.54x = 2,021,354,208,003,799 - Step 5: Solve for x
x = 2,021,354,208,003,799/66,363,900.54 - Step 6: Final answer
x = 30,458,640.79
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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.