Finding the Fourth Proportional to 261,319,062.91, 392,250,989.49 and 115,854,779.56
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Solution
The fourth proportional to 261,319,062.91, 392,250,989.49 and 115,854,779.56 is: 173,902,934.65
Step by Step Solution
- Step 1: Write the proportion equation
261,319,062.91 : 392,250,989.49 = 115,854,779.56 : x - Step 2: Convert to fraction form
261,319,062.91/392,250,989.49 = 115,854,779.56/x - Step 3: Cross multiply
261,319,062.91x = 392,250,989.49 × 115,854,779.56 - Step 4: Simplify right side
261,319,062.91x = 45,444,151,919,555,832 - Step 5: Solve for x
x = 45,444,151,919,555,832/261,319,062.91 - Step 6: Final answer
x = 173,902,934.65
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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.