Finding the Fourth Proportional to 7,912,757.49, 11,868,779.55 and 3,299,844.12
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Solution
The fourth proportional to 7,912,757.49, 11,868,779.55 and 3,299,844.12 is: 4,949,617.43
Step by Step Solution
- Step 1: Write the proportion equation
7,912,757.49 : 11,868,779.55 = 3,299,844.12 : x - Step 2: Convert to fraction form
7,912,757.49/11,868,779.55 = 3,299,844.12/x - Step 3: Cross multiply
7,912,757.49x = 11,868,779.55 × 3,299,844.12 - Step 4: Simplify right side
7,912,757.49x = 39,165,122,409,643.75 - Step 5: Solve for x
x = 39,165,122,409,643.75/7,912,757.49 - Step 6: Final answer
x = 4,949,617.43
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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.