Finding the Fourth Proportional to 157,448,102.44, 217,321,597.83 and 91,389,882.67
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Solution
The fourth proportional to 157,448,102.44, 217,321,597.83 and 91,389,882.67 is: 126,143,122.84
Step by Step Solution
- Step 1: Write the proportion equation
157,448,102.44 : 217,321,597.83 = 91,389,882.67 : x - Step 2: Convert to fraction form
157,448,102.44/217,321,597.83 = 91,389,882.67/x - Step 3: Cross multiply
157,448,102.44x = 217,321,597.83 × 91,389,882.67 - Step 4: Simplify right side
157,448,102.44x = 19,860,995,327,340,628 - Step 5: Solve for x
x = 19,860,995,327,340,628/157,448,102.44 - Step 6: Final answer
x = 126,143,122.84
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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.