Finding the Fourth Proportional to 221,232,115.36, 305,254,738.96 and 127,128,085.92
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Solution
The fourth proportional to 221,232,115.36, 305,254,738.96 and 127,128,085.92 is: 175,410,566.49
Step by Step Solution
- Step 1: Write the proportion equation
221,232,115.36 : 305,254,738.96 = 127,128,085.92 : x - Step 2: Convert to fraction form
221,232,115.36/305,254,738.96 = 127,128,085.92/x - Step 3: Cross multiply
221,232,115.36x = 305,254,738.96 × 127,128,085.92 - Step 4: Simplify right side
221,232,115.36x = 38,806,450,681,994,048 - Step 5: Solve for x
x = 38,806,450,681,994,048/221,232,115.36 - Step 6: Final answer
x = 175,410,566.49
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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.