Finding the Fourth Proportional to 79,921,879.62, 110,292,192.51 and 43,252,450.62
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Solution
The fourth proportional to 79,921,879.62, 110,292,192.51 and 43,252,450.62 is: 59,688,381.12
Step by Step Solution
- Step 1: Write the proportion equation
79,921,879.62 : 110,292,192.51 = 43,252,450.62 : x - Step 2: Convert to fraction form
79,921,879.62/110,292,192.51 = 43,252,450.62/x - Step 3: Cross multiply
79,921,879.62x = 110,292,192.51 × 43,252,450.62 - Step 4: Simplify right side
79,921,879.62x = 4,770,407,610,310,309 - Step 5: Solve for x
x = 4,770,407,610,310,309/79,921,879.62 - Step 6: Final answer
x = 59,688,381.12
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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.