Finding the Fourth Proportional to 311,876,451.74, 430,392,904.62 and 172,649,538.56
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Solution
The fourth proportional to 311,876,451.74, 430,392,904.62 and 172,649,538.56 is: 238,258,246.07
Step by Step Solution
- Step 1: Write the proportion equation
311,876,451.74 : 430,392,904.62 = 172,649,538.56 : x - Step 2: Convert to fraction form
311,876,451.74/430,392,904.62 = 172,649,538.56/x - Step 3: Cross multiply
311,876,451.74x = 430,392,904.62 × 172,649,538.56 - Step 4: Simplify right side
311,876,451.74x = 74,307,136,383,217,072 - Step 5: Solve for x
x = 74,307,136,383,217,072/311,876,451.74 - Step 6: Final answer
x = 238,258,246.07
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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.