Finding the Fourth Proportional to 5,176,426.68, 7,143,518.76 and 2,853,408.95
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Solution
The fourth proportional to 5,176,426.68, 7,143,518.76 and 2,853,408.95 is: 3,937,731.87
Step by Step Solution
- Step 1: Write the proportion equation
5,176,426.68 : 7,143,518.76 = 2,853,408.95 : x - Step 2: Convert to fraction form
5,176,426.68/7,143,518.76 = 2,853,408.95/x - Step 3: Cross multiply
5,176,426.68x = 7,143,518.76 × 2,853,408.95 - Step 4: Simplify right side
5,176,426.68x = 20,383,380,328,559.30 - Step 5: Solve for x
x = 20,383,380,328,559.30/5,176,426.68 - Step 6: Final answer
x = 3,937,731.87
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1.5x scale
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.