Finding the Fourth Proportional to 127,883,542.83, 176,472,043.18 and 72,125,630.65
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Solution
The fourth proportional to 127,883,542.83, 176,472,043.18 and 72,125,630.65 is: 99,529,283.63
Step by Step Solution
- Step 1: Write the proportion equation
127,883,542.83 : 176,472,043.18 = 72,125,630.65 : x - Step 2: Convert to fraction form
127,883,542.83/176,472,043.18 = 72,125,630.65/x - Step 3: Cross multiply
127,883,542.83x = 176,472,043.18 × 72,125,630.65 - Step 4: Simplify right side
127,883,542.83x = 12,728,157,406,451,534 - Step 5: Solve for x
x = 12,728,157,406,451,534/127,883,542.83 - Step 6: Final answer
x = 99,529,283.63
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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.