Finding the Fourth Proportional to 171,877,402.20, 257,438,189.70 and 149,202,586.20
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Solution
The fourth proportional to 171,877,402.20, 257,438,189.70 and 149,202,586.20 is: 223,475,821.71
Step by Step Solution
- Step 1: Write the proportion equation
171,877,402.20 : 257,438,189.70 = 149,202,586.20 : x - Step 2: Convert to fraction form
171,877,402.20/257,438,189.70 = 149,202,586.20/x - Step 3: Cross multiply
171,877,402.20x = 257,438,189.70 × 149,202,586.20 - Step 4: Simplify right side
171,877,402.20x = 38,410,443,689,886,200 - Step 5: Solve for x
x = 38,410,443,689,886,200/171,877,402.20 - Step 6: Final answer
x = 223,475,821.71
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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.