Finding the Fourth Proportional to 8,438,759.08, 11,647,360.98 and 5,130,350.33
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Solution
The fourth proportional to 8,438,759.08, 11,647,360.98 and 5,130,350.33 is: 7,081,022.42
Step by Step Solution
- Step 1: Write the proportion equation
8,438,759.08 : 11,647,360.98 = 5,130,350.33 : x - Step 2: Convert to fraction form
8,438,759.08/11,647,360.98 = 5,130,350.33/x - Step 3: Cross multiply
8,438,759.08x = 11,647,360.98 × 5,130,350.33 - Step 4: Simplify right side
8,438,759.08x = 59,755,042,189,135.32 - Step 5: Solve for x
x = 59,755,042,189,135.32/8,438,759.08 - Step 6: Final answer
x = 7,081,022.42
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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.