Finding the Fourth Proportional to 127,883,546.81, 176,472,048.66 and 72,125,634.62
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Solution
The fourth proportional to 127,883,546.81, 176,472,048.66 and 72,125,634.62 is: 99,529,289.11
Step by Step Solution
- Step 1: Write the proportion equation
127,883,546.81 : 176,472,048.66 = 72,125,634.62 : x - Step 2: Convert to fraction form
127,883,546.81/176,472,048.66 = 72,125,634.62/x - Step 3: Cross multiply
127,883,546.81x = 176,472,048.66 × 72,125,634.62 - Step 4: Simplify right side
127,883,546.81x = 12,728,158,502,735,200 - Step 5: Solve for x
x = 12,728,158,502,735,200/127,883,546.81 - Step 6: Final answer
x = 99,529,289.11
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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.