Finding the Fourth Proportional to 129,018,860.80, 193,528,291.20 and 96,770,233.60
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Solution
The fourth proportional to 129,018,860.80, 193,528,291.20 and 96,770,233.60 is: 145,155,350.40
Step by Step Solution
- Step 1: Write the proportion equation
129,018,860.80 : 193,528,291.20 = 96,770,233.60 : x - Step 2: Convert to fraction form
129,018,860.80/193,528,291.20 = 96,770,233.60/x - Step 3: Cross multiply
129,018,860.80x = 193,528,291.20 × 96,770,233.60 - Step 4: Simplify right side
129,018,860.80x = 18,727,777,947,632,824 - Step 5: Solve for x
x = 18,727,777,947,632,824/129,018,860.80 - Step 6: Final answer
x = 145,155,350.40
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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.