Finding the Fourth Proportional to 2,135,984.18, 2,947,647.92 and 1,155,922.65
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Solution
The fourth proportional to 2,135,984.18, 2,947,647.92 and 1,155,922.65 is: 1,595,167.71
Step by Step Solution
- Step 1: Write the proportion equation
2,135,984.18 : 2,947,647.92 = 1,155,922.65 : x - Step 2: Convert to fraction form
2,135,984.18/2,947,647.92 = 1,155,922.65/x - Step 3: Cross multiply
2,135,984.18x = 2,947,647.92 × 1,155,922.65 - Step 4: Simplify right side
2,135,984.18x = 3,407,252,989,173.77 - Step 5: Solve for x
x = 3,407,252,989,173.77/2,135,984.18 - Step 6: Final answer
x = 1,595,167.71
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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.