Finding the Fourth Proportional to 5,275,865.13, 7,913,797.69 and 1,286,777.13
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Solution
The fourth proportional to 5,275,865.13, 7,913,797.69 and 1,286,777.13 is: 1,930,165.69
Step by Step Solution
- Step 1: Write the proportion equation
5,275,865.13 : 7,913,797.69 = 1,286,777.13 : x - Step 2: Convert to fraction form
5,275,865.13/7,913,797.69 = 1,286,777.13/x - Step 3: Cross multiply
5,275,865.13x = 7,913,797.69 × 1,286,777.13 - Step 4: Simplify right side
5,275,865.13x = 10,183,293,878,938.83 - Step 5: Solve for x
x = 10,183,293,878,938.83/5,275,865.13 - Step 6: Final answer
x = 1,930,165.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.