Finding the Fourth Proportional to 443,232,135.20, 664,848,202.80 and 201,367,431.20
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Solution
The fourth proportional to 443,232,135.20, 664,848,202.80 and 201,367,431.20 is: 302,051,146.80
Step by Step Solution
- Step 1: Write the proportion equation
443,232,135.20 : 664,848,202.80 = 201,367,431.20 : x - Step 2: Convert to fraction form
443,232,135.20/664,848,202.80 = 201,367,431.20/x - Step 3: Cross multiply
443,232,135.20x = 664,848,202.80 × 201,367,431.20 - Step 4: Simplify right side
443,232,135.20x = 133,878,774,735,772,624 - Step 5: Solve for x
x = 133,878,774,735,772,624/443,232,135.20 - Step 6: Final answer
x = 302,051,146.80
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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.