Finding the Fourth Proportional to 197,641,443.58, 272,745,186.73 and 109,548,676.26
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Solution
The fourth proportional to 197,641,443.58, 272,745,186.73 and 109,548,676.26 is: 151,177,170.23
Step by Step Solution
- Step 1: Write the proportion equation
197,641,443.58 : 272,745,186.73 = 109,548,676.26 : x - Step 2: Convert to fraction form
197,641,443.58/272,745,186.73 = 109,548,676.26/x - Step 3: Cross multiply
197,641,443.58x = 272,745,186.73 × 109,548,676.26 - Step 4: Simplify right side
197,641,443.58x = 29,878,874,161,825,512 - Step 5: Solve for x
x = 29,878,874,161,825,512/197,641,443.58 - Step 6: Final answer
x = 151,177,170.23
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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.