Finding the Fourth Proportional to 128,204,405.12, 176,922,234.24 and 69,467,024
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Solution
The fourth proportional to 128,204,405.12, 176,922,234.24 and 69,467,024 is: 95,864,577.20
Step by Step Solution
- Step 1: Write the proportion equation
128,204,405.12 : 176,922,234.24 = 69,467,024 : x - Step 2: Convert to fraction form
128,204,405.12/176,922,234.24 = 69,467,024/x - Step 3: Cross multiply
128,204,405.12x = 176,922,234.24 × 69,467,024 - Step 4: Simplify right side
128,204,405.12x = 12,290,261,092,083,702 - Step 5: Solve for x
x = 12,290,261,092,083,702/128,204,405.12 - Step 6: Final answer
x = 95,864,577.20
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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.