Finding the Fourth Proportional to 2,115,423.70, 3,173,135.55 and 2,023,278.10
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Solution
The fourth proportional to 2,115,423.70, 3,173,135.55 and 2,023,278.10 is: 3,034,917.15
Step by Step Solution
- Step 1: Write the proportion equation
2,115,423.70 : 3,173,135.55 = 2,023,278.10 : x - Step 2: Convert to fraction form
2,115,423.70/3,173,135.55 = 2,023,278.10/x - Step 3: Cross multiply
2,115,423.70x = 3,173,135.55 × 2,023,278.10 - Step 4: Simplify right side
2,115,423.70x = 6,420,135,666,646.46 - Step 5: Solve for x
x = 6,420,135,666,646.46/2,115,423.70 - Step 6: Final answer
x = 3,034,917.15
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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.