Finding the Fourth Proportional to 222,972,230.37, 307,632,258.62 and 128,852,088.31
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Solution
The fourth proportional to 222,972,230.37, 307,632,258.62 and 128,852,088.31 is: 177,775,765.56
Step by Step Solution
- Step 1: Write the proportion equation
222,972,230.37 : 307,632,258.62 = 128,852,088.31 : x - Step 2: Convert to fraction form
222,972,230.37/307,632,258.62 = 128,852,088.31/x - Step 3: Cross multiply
222,972,230.37x = 307,632,258.62 × 128,852,088.31 - Step 4: Simplify right side
222,972,230.37x = 39,639,058,953,295,664 - Step 5: Solve for x
x = 39,639,058,953,295,664/222,972,230.37 - Step 6: Final answer
x = 177,775,765.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.