Finding the Fourth Proportional to 7,351,647.40, 11,027,471.10 and 6,763,781.80
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Solution
The fourth proportional to 7,351,647.40, 11,027,471.10 and 6,763,781.80 is: 10,145,672.70
Step by Step Solution
- Step 1: Write the proportion equation
7,351,647.40 : 11,027,471.10 = 6,763,781.80 : x - Step 2: Convert to fraction form
7,351,647.40/11,027,471.10 = 6,763,781.80/x - Step 3: Cross multiply
7,351,647.40x = 11,027,471.10 × 6,763,781.80 - Step 4: Simplify right side
7,351,647.40x = 74,587,408,326,205.97 - Step 5: Solve for x
x = 74,587,408,326,205.97/7,351,647.40 - Step 6: Final answer
x = 10,145,672.70
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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.