Finding the Fourth Proportional to 79,949,419.35, 110,330,550.81 and 43,279,990.35
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Solution
The fourth proportional to 79,949,419.35, 110,330,550.81 and 43,279,990.35 is: 59,726,577.29
Step by Step Solution
- Step 1: Write the proportion equation
79,949,419.35 : 110,330,550.81 = 43,279,990.35 : x - Step 2: Convert to fraction form
79,949,419.35/110,330,550.81 = 43,279,990.35/x - Step 3: Cross multiply
79,949,419.35x = 110,330,550.81 × 43,279,990.35 - Step 4: Simplify right side
79,949,419.35x = 4,775,105,174,366,985 - Step 5: Solve for x
x = 4,775,105,174,366,985/79,949,419.35 - Step 6: Final answer
x = 59,726,577.29
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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.