Finding the Fourth Proportional to 84,989,324.40, 127,483,986.60 and 66,495,177.60
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Solution
The fourth proportional to 84,989,324.40, 127,483,986.60 and 66,495,177.60 is: 99,742,766.40
Step by Step Solution
- Step 1: Write the proportion equation
84,989,324.40 : 127,483,986.60 = 66,495,177.60 : x - Step 2: Convert to fraction form
84,989,324.40/127,483,986.60 = 66,495,177.60/x - Step 3: Cross multiply
84,989,324.40x = 127,483,986.60 × 66,495,177.60 - Step 4: Simplify right side
84,989,324.40x = 8,477,070,330,123,020 - Step 5: Solve for x
x = 8,477,070,330,123,020/84,989,324.40 - Step 6: Final answer
x = 99,742,766.40
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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.