Finding the Fourth Proportional to 255,845,481.09, 353,066,754.86 and 138,370,808.49
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Solution
The fourth proportional to 255,845,481.09, 353,066,754.86 and 138,370,808.49 is: 190,951,710.82
Step by Step Solution
- Step 1: Write the proportion equation
255,845,481.09 : 353,066,754.86 = 138,370,808.49 : x - Step 2: Convert to fraction form
255,845,481.09/353,066,754.86 = 138,370,808.49/x - Step 3: Cross multiply
255,845,481.09x = 353,066,754.86 × 138,370,808.49 - Step 4: Simplify right side
255,845,481.09x = 48,854,132,320,226,992 - Step 5: Solve for x
x = 48,854,132,320,226,992/255,845,481.09 - Step 6: Final answer
x = 190,951,710.82
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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.