Finding the Fourth Proportional to 69,390,515.87, 95,758,912.53 and 38,450,685.14
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Solution
The fourth proportional to 69,390,515.87, 95,758,912.53 and 38,450,685.14 is: 53,061,945.84
Step by Step Solution
- Step 1: Write the proportion equation
69,390,515.87 : 95,758,912.53 = 38,450,685.14 : x - Step 2: Convert to fraction form
69,390,515.87/95,758,912.53 = 38,450,685.14/x - Step 3: Cross multiply
69,390,515.87x = 95,758,912.53 × 38,450,685.14 - Step 4: Simplify right side
69,390,515.87x = 3,681,995,794,561,036 - Step 5: Solve for x
x = 3,681,995,794,561,036/69,390,515.87 - Step 6: Final answer
x = 53,061,945.84
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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.