Finding the Fourth Proportional to 128,328,370.56, 177,093,191.52 and 69,591,018.24
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Solution
The fourth proportional to 128,328,370.56, 177,093,191.52 and 69,591,018.24 is: 96,035,626.94
Step by Step Solution
- Step 1: Write the proportion equation
128,328,370.56 : 177,093,191.52 = 69,591,018.24 : x - Step 2: Convert to fraction form
128,328,370.56/177,093,191.52 = 69,591,018.24/x - Step 3: Cross multiply
128,328,370.56x = 177,093,191.52 × 69,591,018.24 - Step 4: Simplify right side
128,328,370.56x = 12,324,095,521,248,134 - Step 5: Solve for x
x = 12,324,095,521,248,134/128,328,370.56 - Step 6: Final answer
x = 96,035,626.94
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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.