Finding the Fourth Proportional to 299,551,490.40, 449,327,235.60 and 197,430,837.60
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Solution
The fourth proportional to 299,551,490.40, 449,327,235.60 and 197,430,837.60 is: 296,146,256.40
Step by Step Solution
- Step 1: Write the proportion equation
299,551,490.40 : 449,327,235.60 = 197,430,837.60 : x - Step 2: Convert to fraction form
299,551,490.40/449,327,235.60 = 197,430,837.60/x - Step 3: Cross multiply
299,551,490.40x = 449,327,235.60 × 197,430,837.60 - Step 4: Simplify right side
299,551,490.40x = 88,711,052,481,000,544 - Step 5: Solve for x
x = 88,711,052,481,000,544/299,551,490.40 - Step 6: Final answer
x = 296,146,256.40
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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.