Finding the Fourth Proportional to 128,585,092.80, 192,877,639.20 and 32,846,980.80
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Solution
The fourth proportional to 128,585,092.80, 192,877,639.20 and 32,846,980.80 is: 49,270,471.20
Step by Step Solution
- Step 1: Write the proportion equation
128,585,092.80 : 192,877,639.20 = 32,846,980.80 : x - Step 2: Convert to fraction form
128,585,092.80/192,877,639.20 = 32,846,980.80/x - Step 3: Cross multiply
128,585,092.80x = 192,877,639.20 × 32,846,980.80 - Step 4: Simplify right side
128,585,092.80x = 6,335,448,111,551,727 - Step 5: Solve for x
x = 6,335,448,111,551,727/128,585,092.80 - Step 6: Final answer
x = 49,270,471.20
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1.5x scale
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.