Finding the Fourth Proportional to 154,364,317.92, 213,028,749.36 and 84,752,632.80
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Solution
The fourth proportional to 154,364,317.92, 213,028,749.36 and 84,752,632.80 is: 116,961,922.38
Step by Step Solution
- Step 1: Write the proportion equation
154,364,317.92 : 213,028,749.36 = 84,752,632.80 : x - Step 2: Convert to fraction form
154,364,317.92/213,028,749.36 = 84,752,632.80/x - Step 3: Cross multiply
154,364,317.92x = 213,028,749.36 × 84,752,632.80 - Step 4: Simplify right side
154,364,317.92x = 18,054,747,370,351,316 - Step 5: Solve for x
x = 18,054,747,370,351,316/154,364,317.92 - Step 6: Final answer
x = 116,961,922.38
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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.