Finding the Fourth Proportional to 5,177,433.74, 7,145,283.78 and 2,854,539.02
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Solution
The fourth proportional to 5,177,433.74, 7,145,283.78 and 2,854,539.02 is: 3,939,498.30
Step by Step Solution
- Step 1: Write the proportion equation
5,177,433.74 : 7,145,283.78 = 2,854,539.02 : x - Step 2: Convert to fraction form
5,177,433.74/7,145,283.78 = 2,854,539.02/x - Step 3: Cross multiply
5,177,433.74x = 7,145,283.78 × 2,854,539.02 - Step 4: Simplify right side
5,177,433.74x = 20,396,491,376,846.30 - Step 5: Solve for x
x = 20,396,491,376,846.30/5,177,433.74 - Step 6: Final answer
x = 3,939,498.30
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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.