Finding the Fourth Proportional to 7,739,579.70, 11,609,369.55 and 1,982,302.20
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Solution
The fourth proportional to 7,739,579.70, 11,609,369.55 and 1,982,302.20 is: 2,973,453.30
Step by Step Solution
- Step 1: Write the proportion equation
7,739,579.70 : 11,609,369.55 = 1,982,302.20 : x - Step 2: Convert to fraction form
7,739,579.70/11,609,369.55 = 1,982,302.20/x - Step 3: Cross multiply
7,739,579.70x = 11,609,369.55 × 1,982,302.20 - Step 4: Simplify right side
7,739,579.70x = 23,013,278,799,578.01 - Step 5: Solve for x
x = 23,013,278,799,578.01/7,739,579.70 - Step 6: Final answer
x = 2,973,453.30
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1.5x scale
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.