Finding the Fourth Proportional to 10,865,278.85, 14,979,102.26 and 8,667,600.75
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Solution
The fourth proportional to 10,865,278.85, 14,979,102.26 and 8,667,600.75 is: 11,949,336.95
Step by Step Solution
- Step 1: Write the proportion equation
10,865,278.85 : 14,979,102.26 = 8,667,600.75 : x - Step 2: Convert to fraction form
10,865,278.85/14,979,102.26 = 8,667,600.75/x - Step 3: Cross multiply
10,865,278.85x = 14,979,102.26 × 8,667,600.75 - Step 4: Simplify right side
10,865,278.85x = 129,832,877,939,764.70 - Step 5: Solve for x
x = 129,832,877,939,764.70/10,865,278.85 - Step 6: Final answer
x = 11,949,336.95
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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.