Finding the Fourth Proportional to 128,441,223.93, 177,250,186.86 and 69,704,396.49
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Solution
The fourth proportional to 128,441,223.93, 177,250,186.86 and 69,704,396.49 is: 96,192,771.49
Step by Step Solution
- Step 1: Write the proportion equation
128,441,223.93 : 177,250,186.86 = 69,704,396.49 : x - Step 2: Convert to fraction form
128,441,223.93/177,250,186.86 = 69,704,396.49/x - Step 3: Cross multiply
128,441,223.93x = 177,250,186.86 × 69,704,396.49 - Step 4: Simplify right side
128,441,223.93x = 12,355,117,302,816,028 - Step 5: Solve for x
x = 12,355,117,302,816,028/128,441,223.93 - Step 6: Final answer
x = 96,192,771.49
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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.