Finding the Fourth Proportional to 319,115,202.80, 478,672,804.20 and 264,695,644.40
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Solution
The fourth proportional to 319,115,202.80, 478,672,804.20 and 264,695,644.40 is: 397,043,466.60
Step by Step Solution
- Step 1: Write the proportion equation
319,115,202.80 : 478,672,804.20 = 264,695,644.40 : x - Step 2: Convert to fraction form
319,115,202.80/478,672,804.20 = 264,695,644.40/x - Step 3: Cross multiply
319,115,202.80x = 478,672,804.20 × 264,695,644.40 - Step 4: Simplify right side
319,115,202.80x = 126,702,606,364,474,032 - Step 5: Solve for x
x = 126,702,606,364,474,032/319,115,202.80 - Step 6: Final answer
x = 397,043,466.60
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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.