Finding the Fourth Proportional to 84,129,743.70, 126,194,615.55 and 84,129,743.70
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Solution
The fourth proportional to 84,129,743.70, 126,194,615.55 and 84,129,743.70 is: 126,194,615.55
Step by Step Solution
- Step 1: Write the proportion equation
84,129,743.70 : 126,194,615.55 = 84,129,743.70 : x - Step 2: Convert to fraction form
84,129,743.70/126,194,615.55 = 84,129,743.70/x - Step 3: Cross multiply
84,129,743.70x = 126,194,615.55 × 84,129,743.70 - Step 4: Simplify right side
84,129,743.70x = 10,616,720,662,541,534 - Step 5: Solve for x
x = 10,616,720,662,541,534/84,129,743.70 - Step 6: Final answer
x = 126,194,615.55
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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.