Finding the Fourth Proportional to 171,877,102.20, 257,437,739.70 and 149,202,286.20
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Solution
The fourth proportional to 171,877,102.20, 257,437,739.70 and 149,202,286.20 is: 223,475,371.80
Step by Step Solution
- Step 1: Write the proportion equation
171,877,102.20 : 257,437,739.70 = 149,202,286.20 : x - Step 2: Convert to fraction form
171,877,102.20/257,437,739.70 = 149,202,286.20/x - Step 3: Cross multiply
171,877,102.20x = 257,437,739.70 × 149,202,286.20 - Step 4: Simplify right side
171,877,102.20x = 38,410,299,317,400,496 - Step 5: Solve for x
x = 38,410,299,317,400,496/171,877,102.20 - Step 6: Final answer
x = 223,475,371.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.