Finding the Fourth Proportional to 209,310,163.89, 313,941,289.20 and 55,968,177.75
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Solution
The fourth proportional to 209,310,163.89, 313,941,289.20 and 55,968,177.75 is: 83,945,860.78
Step by Step Solution
- Step 1: Write the proportion equation
209,310,163.89 : 313,941,289.20 = 55,968,177.75 : x - Step 2: Convert to fraction form
209,310,163.89/313,941,289.20 = 55,968,177.75/x - Step 3: Cross multiply
209,310,163.89x = 313,941,289.20 × 55,968,177.75 - Step 4: Simplify right side
209,310,163.89x = 17,570,721,877,009,754 - Step 5: Solve for x
x = 17,570,721,877,009,754/209,310,163.89 - Step 6: Final answer
x = 83,945,860.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.