Finding the Fourth Proportional to 9,408,416.19, 12,983,814.10 and 5,278,745.95
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Solution
The fourth proportional to 9,408,416.19, 12,983,814.10 and 5,278,745.95 is: 7,284,781.50
Step by Step Solution
- Step 1: Write the proportion equation
9,408,416.19 : 12,983,814.10 = 5,278,745.95 : x - Step 2: Convert to fraction form
9,408,416.19/12,983,814.10 = 5,278,745.95/x - Step 3: Cross multiply
9,408,416.19x = 12,983,814.10 × 5,278,745.95 - Step 4: Simplify right side
9,408,416.19x = 68,538,256,143,100.75 - Step 5: Solve for x
x = 68,538,256,143,100.75/9,408,416.19 - Step 6: Final answer
x = 7,284,781.50
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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.