Finding the Fourth Proportional to 84,121,201.70, 117,939,743.50 and 84,121,201.70
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Solution
The fourth proportional to 84,121,201.70, 117,939,743.50 and 84,121,201.70 is: 117,939,743.50
Step by Step Solution
- Step 1: Write the proportion equation
84,121,201.70 : 117,939,743.50 = 84,121,201.70 : x - Step 2: Convert to fraction form
84,121,201.70/117,939,743.50 = 84,121,201.70/x - Step 3: Cross multiply
84,121,201.70x = 117,939,743.50 × 84,121,201.70 - Step 4: Simplify right side
84,121,201.70x = 9,921,232,951,409,764 - Step 5: Solve for x
x = 9,921,232,951,409,764/84,121,201.70 - Step 6: Final answer
x = 117,939,743.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.