Finding the Fourth Proportional to 121,407,237.20, 170,352,769.60 and 121,407,237.20
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Solution
The fourth proportional to 121,407,237.20, 170,352,769.60 and 121,407,237.20 is: 170,352,769.60
Step by Step Solution
- Step 1: Write the proportion equation
121,407,237.20 : 170,352,769.60 = 121,407,237.20 : x - Step 2: Convert to fraction form
121,407,237.20/170,352,769.60 = 121,407,237.20/x - Step 3: Cross multiply
121,407,237.20x = 170,352,769.60 × 121,407,237.20 - Step 4: Simplify right side
121,407,237.20x = 20,682,059,106,504,148 - Step 5: Solve for x
x = 20,682,059,106,504,148/121,407,237.20 - Step 6: Final answer
x = 170,352,769.60
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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.