Finding the Fourth Proportional to 3,618,672.90, 5,430,082.95 and 1,376,420.10
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Solution
The fourth proportional to 3,618,672.90, 5,430,082.95 and 1,376,420.10 is: 2,065,418.88
Step by Step Solution
- Step 1: Write the proportion equation
3,618,672.90 : 5,430,082.95 = 1,376,420.10 : x - Step 2: Convert to fraction form
3,618,672.90/5,430,082.95 = 1,376,420.10/x - Step 3: Cross multiply
3,618,672.90x = 5,430,082.95 × 1,376,420.10 - Step 4: Simplify right side
3,618,672.90x = 7,474,075,317,047.30 - Step 5: Solve for x
x = 7,474,075,317,047.30/3,618,672.90 - Step 6: Final answer
x = 2,065,418.88
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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.