Finding the Fourth Proportional to 84,745,107.70, 127,117,661.55 and 65,613,231.70
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Solution
The fourth proportional to 84,745,107.70, 127,117,661.55 and 65,613,231.70 is: 98,419,847.55
Step by Step Solution
- Step 1: Write the proportion equation
84,745,107.70 : 127,117,661.55 = 65,613,231.70 : x - Step 2: Convert to fraction form
84,745,107.70/127,117,661.55 = 65,613,231.70/x - Step 3: Cross multiply
84,745,107.70x = 127,117,661.55 × 65,613,231.70 - Step 4: Simplify right side
84,745,107.70x = 8,340,600,580,442,331 - Step 5: Solve for x
x = 8,340,600,580,442,331/84,745,107.70 - Step 6: Final answer
x = 98,419,847.55
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1.5x scale
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.