Finding the Fourth Proportional to 128,770,883.20, 193,089,969.60 and 47,950,249.60
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Solution
The fourth proportional to 128,770,883.20, 193,089,969.60 and 47,950,249.60 is: 71,900,665.80
Step by Step Solution
- Step 1: Write the proportion equation
128,770,883.20 : 193,089,969.60 = 47,950,249.60 : x - Step 2: Convert to fraction form
128,770,883.20/193,089,969.60 = 47,950,249.60/x - Step 3: Cross multiply
128,770,883.20x = 193,089,969.60 × 47,950,249.60 - Step 4: Simplify right side
128,770,883.20x = 9,258,712,237,576,412 - Step 5: Solve for x
x = 9,258,712,237,576,412/128,770,883.20 - Step 6: Final answer
x = 71,900,665.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.