Finding the Fourth Proportional to 731,951,877.28, 1,010,111,141.36 and 397,438,497.68
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Solution
The fourth proportional to 731,951,877.28, 1,010,111,141.36 and 397,438,497.68 is: 548,474,656.56
Step by Step Solution
- Step 1: Write the proportion equation
731,951,877.28 : 1,010,111,141.36 = 397,438,497.68 : x - Step 2: Convert to fraction form
731,951,877.28/1,010,111,141.36 = 397,438,497.68/x - Step 3: Cross multiply
731,951,877.28x = 1,010,111,141.36 × 397,438,497.68 - Step 4: Simplify right side
731,951,877.28x = 401,457,054,511,948,544 - Step 5: Solve for x
x = 401,457,054,511,948,544/731,951,877.28 - Step 6: Final answer
x = 548,474,656.56
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1.5x scale
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.