Finding the Fourth Proportional to 2,916,455.49, 4,023,586.07 and 1,826,830.13
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Solution
The fourth proportional to 2,916,455.49, 4,023,586.07 and 1,826,830.13 is: 2,520,322.45
Step by Step Solution
- Step 1: Write the proportion equation
2,916,455.49 : 4,023,586.07 = 1,826,830.13 : x - Step 2: Convert to fraction form
2,916,455.49/4,023,586.07 = 1,826,830.13/x - Step 3: Cross multiply
2,916,455.49x = 4,023,586.07 × 1,826,830.13 - Step 4: Simplify right side
2,916,455.49x = 7,350,408,234,072.21 - Step 5: Solve for x
x = 7,350,408,234,072.21/2,916,455.49 - Step 6: Final answer
x = 2,520,322.45
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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.