Finding the Fourth Proportional to 128,015,203.19, 192,023,303.00 and 30,970,755.09
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Solution
The fourth proportional to 128,015,203.19, 192,023,303.00 and 30,970,755.09 is: 46,456,253.17
Step by Step Solution
- Step 1: Write the proportion equation
128,015,203.19 : 192,023,303.00 = 30,970,755.09 : x - Step 2: Convert to fraction form
128,015,203.19/192,023,303.00 = 30,970,755.09/x - Step 3: Cross multiply
128,015,203.19x = 192,023,303.00 × 30,970,755.09 - Step 4: Simplify right side
128,015,203.19x = 5,947,106,688,631,009 - Step 5: Solve for x
x = 5,947,106,688,631,009/128,015,203.19 - Step 6: Final answer
x = 46,456,253.17
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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.