Finding the Fourth Proportional to 221,440,201.65, 332,160,302.48 and 211,362,505.65
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Solution
The fourth proportional to 221,440,201.65, 332,160,302.48 and 211,362,505.65 is: 317,043,758.48
Step by Step Solution
- Step 1: Write the proportion equation
221,440,201.65 : 332,160,302.48 = 211,362,505.65 : x - Step 2: Convert to fraction form
221,440,201.65/332,160,302.48 = 211,362,505.65/x - Step 3: Cross multiply
221,440,201.65x = 332,160,302.48 × 211,362,505.65 - Step 4: Simplify right side
221,440,201.65x = 70,206,233,808,577,904 - Step 5: Solve for x
x = 70,206,233,808,577,904/221,440,201.65 - Step 6: Final answer
x = 317,043,758.48
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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.