Finding the Fourth Proportional to 128,111,953.83, 192,128,186.47 and 46,220,186.49
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Solution
The fourth proportional to 128,111,953.83, 192,128,186.47 and 46,220,186.49 is: 69,315,940.80
Step by Step Solution
- Step 1: Write the proportion equation
128,111,953.83 : 192,128,186.47 = 46,220,186.49 : x - Step 2: Convert to fraction form
128,111,953.83/192,128,186.47 = 46,220,186.49/x - Step 3: Cross multiply
128,111,953.83x = 192,128,186.47 × 46,220,186.49 - Step 4: Simplify right side
128,111,953.83x = 8,880,200,607,879,295 - Step 5: Solve for x
x = 8,880,200,607,879,295/128,111,953.83 - Step 6: Final answer
x = 69,315,940.80
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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.