Finding the Fourth Proportional to 215,612,239.16, 297,544,891.40 and 122,801,382.92
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Solution
The fourth proportional to 215,612,239.16, 297,544,891.40 and 122,801,382.92 is: 169,465,909.20
Step by Step Solution
- Step 1: Write the proportion equation
215,612,239.16 : 297,544,891.40 = 122,801,382.92 : x - Step 2: Convert to fraction form
215,612,239.16/297,544,891.40 = 122,801,382.92/x - Step 3: Cross multiply
215,612,239.16x = 297,544,891.40 × 122,801,382.92 - Step 4: Simplify right side
215,612,239.16x = 36,538,924,143,059,992 - Step 5: Solve for x
x = 36,538,924,143,059,992/215,612,239.16 - Step 6: Final answer
x = 169,465,909.20
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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.