Finding the Fourth Proportional to 157,717,546.56, 217,649,675.84 and 87,151,191.18
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Solution
The fourth proportional to 157,717,546.56, 217,649,675.84 and 87,151,191.18 is: 120,268,346.31
Step by Step Solution
- Step 1: Write the proportion equation
157,717,546.56 : 217,649,675.84 = 87,151,191.18 : x - Step 2: Convert to fraction form
157,717,546.56/217,649,675.84 = 87,151,191.18/x - Step 3: Cross multiply
157,717,546.56x = 217,649,675.84 × 87,151,191.18 - Step 4: Simplify right side
157,717,546.56x = 18,968,428,508,961,112 - Step 5: Solve for x
x = 18,968,428,508,961,112/157,717,546.56 - Step 6: Final answer
x = 120,268,346.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.