Finding the Fourth Proportional to 79,858,936.58, 110,205,405.96 and 43,189,507.58
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Solution
The fourth proportional to 79,858,936.58, 110,205,405.96 and 43,189,507.58 is: 59,601,560.20
Step by Step Solution
- Step 1: Write the proportion equation
79,858,936.58 : 110,205,405.96 = 43,189,507.58 : x - Step 2: Convert to fraction form
79,858,936.58/110,205,405.96 = 43,189,507.58/x - Step 3: Cross multiply
79,858,936.58x = 110,205,405.96 × 43,189,507.58 - Step 4: Simplify right side
79,858,936.58x = 4,759,717,215,515,370 - Step 5: Solve for x
x = 4,759,717,215,515,370/79,858,936.58 - Step 6: Final answer
x = 59,601,560.20
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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.