Finding the Fourth Proportional to 126,120,294.09, 189,089,647.38 and 77,497,689.42
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Solution
The fourth proportional to 126,120,294.09, 189,089,647.38 and 77,497,689.42 is: 116,190,743.69
Step by Step Solution
- Step 1: Write the proportion equation
126,120,294.09 : 189,089,647.38 = 77,497,689.42 : x - Step 2: Convert to fraction form
126,120,294.09/189,089,647.38 = 77,497,689.42/x - Step 3: Cross multiply
126,120,294.09x = 189,089,647.38 × 77,497,689.42 - Step 4: Simplify right side
126,120,294.09x = 14,654,010,765,192,556 - Step 5: Solve for x
x = 14,654,010,765,192,556/126,120,294.09 - Step 6: Final answer
x = 116,190,743.69
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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.