Finding the Fourth Proportional to 3,862,598.97, 5,330,138.27 and 2,143,720.65
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Solution
The fourth proportional to 3,862,598.97, 5,330,138.27 and 2,143,720.65 is: 2,958,196.68
Step by Step Solution
- Step 1: Write the proportion equation
3,862,598.97 : 5,330,138.27 = 2,143,720.65 : x - Step 2: Convert to fraction form
3,862,598.97/5,330,138.27 = 2,143,720.65/x - Step 3: Cross multiply
3,862,598.97x = 5,330,138.27 × 2,143,720.65 - Step 4: Simplify right side
3,862,598.97x = 11,426,327,466,035.67 - Step 5: Solve for x
x = 11,426,327,466,035.67/3,862,598.97 - Step 6: Final answer
x = 2,958,196.68
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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.