Finding the Fourth Proportional to 265,890,207.12, 366,989,709.87 and 155,917,349.52
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Solution
The fourth proportional to 265,890,207.12, 366,989,709.87 and 155,917,349.52 is: 215,201,843.96
Step by Step Solution
- Step 1: Write the proportion equation
265,890,207.12 : 366,989,709.87 = 155,917,349.52 : x - Step 2: Convert to fraction form
265,890,207.12/366,989,709.87 = 155,917,349.52/x - Step 3: Cross multiply
265,890,207.12x = 366,989,709.87 × 155,917,349.52 - Step 4: Simplify right side
265,890,207.12x = 57,220,062,864,044,192 - Step 5: Solve for x
x = 57,220,062,864,044,192/265,890,207.12 - Step 6: Final answer
x = 215,201,843.96
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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.