Finding the Fourth Proportional to 7,193,139.12, 10,780,408.41 and 5,381,811.05
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Solution
The fourth proportional to 7,193,139.12, 10,780,408.41 and 5,381,811.05 is: 8,065,758.23
Step by Step Solution
- Step 1: Write the proportion equation
7,193,139.12 : 10,780,408.41 = 5,381,811.05 : x - Step 2: Convert to fraction form
7,193,139.12/10,780,408.41 = 5,381,811.05/x - Step 3: Cross multiply
7,193,139.12x = 10,780,408.41 × 5,381,811.05 - Step 4: Simplify right side
7,193,139.12x = 58,018,121,084,206.19 - Step 5: Solve for x
x = 58,018,121,084,206.19/7,193,139.12 - Step 6: Final answer
x = 8,065,758.23
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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.