Finding the Fourth Proportional to 5,377,431.67, 7,420,762.29 and 2,930,062.84
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Solution
The fourth proportional to 5,377,431.67, 7,420,762.29 and 2,930,062.84 is: 4,043,435.82
Step by Step Solution
- Step 1: Write the proportion equation
5,377,431.67 : 7,420,762.29 = 2,930,062.84 : x - Step 2: Convert to fraction form
5,377,431.67/7,420,762.29 = 2,930,062.84/x - Step 3: Cross multiply
5,377,431.67x = 7,420,762.29 × 2,930,062.84 - Step 4: Simplify right side
5,377,431.67x = 21,743,299,830,402.30 - Step 5: Solve for x
x = 21,743,299,830,402.30/5,377,431.67 - Step 6: Final answer
x = 4,043,435.82
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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.