Finding the Fourth Proportional to 739,920,921.93, 1,020,961,094.09 and 422,236,120.95
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Solution
The fourth proportional to 739,920,921.93, 1,020,961,094.09 and 422,236,120.95 is: 582,611,788.95
Step by Step Solution
- Step 1: Write the proportion equation
739,920,921.93 : 1,020,961,094.09 = 422,236,120.95 : x - Step 2: Convert to fraction form
739,920,921.93/1,020,961,094.09 = 422,236,120.95/x - Step 3: Cross multiply
739,920,921.93x = 1,020,961,094.09 × 422,236,120.95 - Step 4: Simplify right side
739,920,921.93x = 431,086,652,007,318,400 - Step 5: Solve for x
x = 431,086,652,007,318,400/739,920,921.93 - Step 6: Final answer
x = 582,611,788.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.