Finding the Fourth Proportional to 128,111,954.83, 192,128,187.97 and 46,220,187.49
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Solution
The fourth proportional to 128,111,954.83, 192,128,187.97 and 46,220,187.49 is: 69,315,942.31
Step by Step Solution
- Step 1: Write the proportion equation
128,111,954.83 : 192,128,187.97 = 46,220,187.49 : x - Step 2: Convert to fraction form
128,111,954.83/192,128,187.97 = 46,220,187.49/x - Step 3: Cross multiply
128,111,954.83x = 192,128,187.97 × 46,220,187.49 - Step 4: Simplify right side
128,111,954.83x = 8,880,200,870,087,363 - Step 5: Solve for x
x = 8,880,200,870,087,363/128,111,954.83 - Step 6: Final answer
x = 69,315,942.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.