Finding the Fourth Proportional to 127,982,998.24, 176,621,549.60 and 72,230,366.14
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Solution
The fourth proportional to 127,982,998.24, 176,621,549.60 and 72,230,366.14 is: 99,680,733.94
Step by Step Solution
- Step 1: Write the proportion equation
127,982,998.24 : 176,621,549.60 = 72,230,366.14 : x - Step 2: Convert to fraction form
127,982,998.24/176,621,549.60 = 72,230,366.14/x - Step 3: Cross multiply
127,982,998.24x = 176,621,549.60 × 72,230,366.14 - Step 4: Simplify right side
127,982,998.24x = 12,757,439,195,822,170 - Step 5: Solve for x
x = 12,757,439,195,822,170/127,982,998.24 - Step 6: Final answer
x = 99,680,733.94
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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.