Finding the Fourth Proportional to 5,618,449.22, 7,758,699.33 and 4,135,355.15
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Solution
The fourth proportional to 5,618,449.22, 7,758,699.33 and 4,135,355.15 is: 5,710,646.47
Step by Step Solution
- Step 1: Write the proportion equation
5,618,449.22 : 7,758,699.33 = 4,135,355.15 : x - Step 2: Convert to fraction form
5,618,449.22/7,758,699.33 = 4,135,355.15/x - Step 3: Cross multiply
5,618,449.22x = 7,758,699.33 × 4,135,355.15 - Step 4: Simplify right side
5,618,449.22x = 32,084,977,192,823.55 - Step 5: Solve for x
x = 32,084,977,192,823.55/5,618,449.22 - Step 6: Final answer
x = 5,710,646.47
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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.